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korenkonder_ReDIVA/src/CRE/Glitter/render_scene.cpp
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korenkonder 6eb8dffe45 Glitter: Small overhaul
2024-07-28 09:57:31 +03:00

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/*
by korenkonder
GitHub/GitLab: korenkonder
*/
#include "glitter.hpp"
#include "../gl_state.hpp"
#include "../render_context.hpp"
#include "../shader.hpp"
#include "../shader_ft.hpp"
#include "../static_var.hpp"
extern render_context* rctx_ptr;
namespace Glitter {
RenderScene::RenderScene() : ctrl_quad(), ctrl_line(), ctrl_locus(),
ctrl_mesh(), disp_quad(), disp_line(), disp_locus(), disp_mesh() {
}
RenderScene::~RenderScene() {
}
size_t RenderScene::GetCtrlCount(ParticleType type) {
switch (type) {
case PARTICLE_QUAD:
return ctrl_quad;
case PARTICLE_LINE:
return ctrl_line;
case PARTICLE_LOCUS:
return ctrl_locus;
case PARTICLE_MESH:
return ctrl_mesh;
default:
return 0;
}
}
size_t RenderScene::GetDispCount(ParticleType type) {
switch (type) {
case PARTICLE_QUAD:
return disp_quad;
case PARTICLE_LINE:
return disp_line;
case PARTICLE_LOCUS:
return disp_locus;
case PARTICLE_MESH:
return disp_mesh;
default:
return 0;
}
}
void RenderScene::CalcDispLocusSetPivot(Pivot pivot,
float_t w, float_t& v00, float_t& v01) {
switch (pivot) {
case PIVOT_TOP_LEFT:
case PIVOT_MIDDLE_LEFT:
case PIVOT_BOTTOM_LEFT:
v00 = 0.0f;
v01 = w;
break;
case PIVOT_TOP_CENTER:
case PIVOT_MIDDLE_CENTER:
case PIVOT_BOTTOM_CENTER:
default:
v00 = w * -0.5f;
v01 = w * 0.5f;
break;
case PIVOT_TOP_RIGHT:
case PIVOT_MIDDLE_RIGHT:
case PIVOT_BOTTOM_RIGHT:
v00 = -w;
v01 = 0.0f;
break;
}
}
void RenderScene::CalcDispQuadSetPivot(Pivot pivot,
float_t w, float_t h, float_t& v00, float_t& v01, float_t& v10, float_t& v11) {
switch (pivot) {
case PIVOT_TOP_LEFT:
v00 = 0.0f;
v01 = w;
v10 = -h;
v11 = 0.0f;
break;
case PIVOT_TOP_CENTER:
v00 = w * -0.5f;
v01 = w * 0.5f;
v10 = -h;
v11 = 0.0f;
break;
case PIVOT_TOP_RIGHT:
v00 = -w;
v01 = 0.0f;
v10 = -h;
v11 = 0.0f;
break;
case PIVOT_MIDDLE_LEFT:
v00 = 0.0f;
v01 = w;
v10 = h * -0.5f;
v11 = h * 0.5f;
break;
case PIVOT_MIDDLE_CENTER:
default:
v00 = w * -0.5f;
v01 = w * 0.5f;
v10 = h * -0.5f;
v11 = h * 0.5f;
break;
case PIVOT_MIDDLE_RIGHT:
v00 = -w;
v01 = 0.0f;
v10 = h * -0.5f;
v11 = h * 0.5f;
break;
case PIVOT_BOTTOM_LEFT:
v00 = 0.0f;
v01 = w;
v10 = 0.0f;
v11 = h;
break;
case PIVOT_BOTTOM_CENTER:
v00 = w * -0.5f;
v01 = w * 0.5f;
v10 = 0.0f;
v11 = h;
break;
case PIVOT_BOTTOM_RIGHT:
v00 = -w;
v01 = 0.0f;
v10 = 0.0f;
v11 = h;
break;
}
}
F2RenderScene::F2RenderScene() {
groups.reserve(0x40);
}
F2RenderScene::~F2RenderScene() {
for (F2RenderGroup*& i : groups)
delete i;
}
void F2RenderScene::Append(F2RenderGroup* rend_group) {
groups.push_back(rend_group);
}
void F2RenderScene::CalcDisp(GPM) {
disp_quad = 0;
disp_line = 0;
disp_locus = 0;
disp_mesh = 0;
Effect* eff = GPM_VAL->selected_effect;
Emitter* emit = GPM_VAL->selected_emitter;
Particle* ptcl = GPM_VAL->selected_particle;
for (F2RenderGroup*& i : groups) {
if (!i)
continue;
F2RenderGroup* rend_group = i;
if (rend_group->CannotDisp() && !GPM_VAL->draw_all)
continue;
if (!GPM_VAL->draw_selected || !eff) {
CalcDisp(GPM_VAL, rend_group);
}
else if ((eff && ptcl) || (eff && !emit)) {
if (!ptcl || rend_group->particle->particle == ptcl)
CalcDisp(GPM_VAL, rend_group);
}
else if (emit)
for (Particle*& j : emit->particles) {
if (!j)
continue;
Particle* particle = j;
if (rend_group->particle->particle == particle)
CalcDisp(GPM_VAL, rend_group);
}
}
}
void F2RenderScene::CalcDisp(GPM, F2RenderGroup* rend_group) {
rend_group->disp = 0;
switch (rend_group->type) {
case PARTICLE_QUAD:
if (!rend_group->vao)
return;
CalcDispQuad(GPM_VAL, rend_group);
disp_quad += rend_group->disp;
break;
case PARTICLE_LINE:
if (!rend_group->vao)
return;
CalcDispLine(rend_group);
disp_line += rend_group->disp;
break;
case PARTICLE_LOCUS:
if (!rend_group->vao)
return;
CalcDispLocus(GPM_VAL, rend_group);
disp_locus += rend_group->disp;
break;
}
}
void F2RenderScene::CalcDispLine(F2RenderGroup* rend_group) {
if (!rend_group->elements || rend_group->vbo.IsNull() || rend_group->ctrl < 1)
return;
size_t count = 0;
RenderElement* elem = rend_group->elements;
for (size_t i = rend_group->ctrl; i > 0; i--, elem++) {
if (!elem->alive)
continue;
if (elem->locus_history) {
size_t length = elem->locus_history->data.size();
if (length > 1)
count += length;
}
}
if (!count || count > rend_group->max_count)
return;
bool has_scale = false;
vec3 scale = 0.0f;
if (rend_group->flags & PARTICLE_EMITTER_LOCAL) {
mat4_get_scale(&rend_group->mat, &scale);
scale -= 1.0f;
if (!(has_scale |= fabsf(scale.x) > 0.000001f ? true : false))
scale.x = 0.0f;
if (!(has_scale |= fabsf(scale.y) > 0.000001f ? true : false))
scale.y = 0.0f;
if (!(has_scale |= fabsf(scale.z) > 0.000001f ? true : false))
scale.z = 0.0f;
mat4_normalize_rotation(&rend_group->mat, &rend_group->mat_draw);
}
else
rend_group->mat_draw = mat4_identity;
Buffer* buf = (Buffer*)rend_group->vbo.MapMemory();
if (!buf)
return;
elem = rend_group->elements;
size_t disp = 0;
rend_group->draw_list.clear();
for (size_t i = rend_group->ctrl, index = 0; i > 0; elem++) {
if (!elem->alive)
continue;
i--;
LocusHistory* hist = elem->locus_history;
if (!elem->disp || !hist || hist->data.size() < 2)
continue;
size_t j = 0;
if (has_scale)
for (LocusHistory::Data& hist_data : hist->data) {
vec3& pos = hist_data.translation;
buf->position = pos + (pos - elem->base_translation) * scale;
buf->uv[0] = 0.0f;
buf->uv[1] = 0.0f;
buf->color = hist_data.color;
j++;
buf++;
}
else
for (LocusHistory::Data& hist_data : hist->data) {
buf->position = hist_data.translation;
buf->uv[0] = 0.0f;
buf->uv[1] = 0.0f;
buf->color = hist_data.color;
j++;
buf++;
}
if (j > 0) {
disp += j;
rend_group->draw_list.push_back((GLint)index, (GLsizei)j);
index += j;
}
}
rend_group->disp = disp;
rend_group->vbo.UnmapMemory();
}
void F2RenderScene::CalcDispLocus(GPM, F2RenderGroup* rend_group) {
if (!rend_group->elements || rend_group->vbo.IsNull() || rend_group->ctrl < 1)
return;
size_t count = 0;
RenderElement* elem = rend_group->elements;
for (size_t i = rend_group->ctrl; i > 0; i--, elem++) {
if (!elem->alive)
continue;
if (elem->locus_history) {
LocusHistory* hist = elem->locus_history;
size_t length = elem->locus_history->data.size();
if (length > 1)
count += 2 * length;
}
}
if (!count || count > rend_group->max_count)
return;
vec3 x_vec = { 1.0f, 0.0f, 0.0f };
if (rend_group->flags & PARTICLE_LOCAL) {
mat4 mat;
mat4_mul(&GPM_VAL->cam.inv_view, &rend_group->mat, &mat);
mat4_mul(&GPM_VAL->cam.view, &mat, &mat);
mat4_mul(&mat, &GPM_VAL->cam.inv_view, &rend_group->mat_draw);
}
else
rend_group->mat_draw = mat4_identity;
bool has_scale = false;
vec3 scale = 0.0f;
mat3 model_mat;
if (rend_group->flags & PARTICLE_EMITTER_LOCAL) {
mat4_get_scale(&rend_group->mat, &scale);
if (rend_group->flags & PARTICLE_SCALE)
x_vec.x = scale.x;
scale -= 1.0f;
if (!(has_scale |= fabsf(scale.x) > 0.000001f ? true : false))
scale.x = 0.0f;
if (!(has_scale |= fabsf(scale.y) > 0.000001f ? true : false))
scale.y = 0.0f;
if (!(has_scale |= fabsf(scale.z) > 0.000001f ? true : false))
scale.z = 0.0f;
mat4_transform_vector(&rend_group->mat_rot, &scale, &scale);
mat4_to_mat3(&rend_group->mat, &model_mat);
mat3_normalize_rotation(&model_mat, &model_mat);
}
else
model_mat = mat3_identity;
mat3_transform_vector(&GPM_VAL->cam.inv_view_mat3, &x_vec, &x_vec);
Buffer* buf = (Buffer*)rend_group->vbo.MapMemory();
if (!buf)
return;
elem = rend_group->elements;
vec2 split_uv = rend_group->split_uv;
Pivot pivot = rend_group->pivot;
size_t disp = 0;
rend_group->draw_list.clear();
for (size_t i = rend_group->ctrl, index = 0; i > 0; elem++) {
if (!elem->alive)
continue;
i--;
LocusHistory* hist = elem->locus_history;
if (!elem->disp || !hist || hist->data.size() < 2)
continue;
float_t uv_u = elem->uv.x + elem->uv_scroll.x;
float_t uv_u_2nd = elem->uv.x + elem->uv_scroll.x + split_uv.x;
float_t uv_v_2nd = elem->uv.y + elem->uv_scroll.y + split_uv.y;
float_t uv_v_scale = split_uv.y / (float_t)(hist->data.size() - 1);
uv_v_2nd = 1.0f - uv_v_2nd;
size_t j = 0;
if (has_scale)
for (LocusHistory::Data& hist_data : hist->data) {
vec3 pos = hist_data.translation;
vec3 pos_diff = (pos - elem->base_translation) * scale;
mat3_transform_vector(&model_mat, &pos_diff, &pos_diff);
pos += pos_diff;
float_t v00;
float_t v01;
CalcDispLocusSetPivot(pivot,
hist_data.scale * elem->scale.x * elem->scale_all,
v00, v01);
buf[0].position = pos + x_vec * v00;
buf[0].uv[0].x = uv_u;
buf[0].uv[0].y = uv_v_2nd + (float_t)j * uv_v_scale;
buf[0].uv[1] = buf[0].uv[0];
buf[0].color = hist_data.color;
buf[1].position = pos + x_vec * v01;
buf[1].uv[0].x = uv_u_2nd;
buf[1].uv[0].y = uv_v_2nd + (float_t)j * uv_v_scale;
buf[1].uv[1] = buf[1].uv[0];
buf[1].color = hist_data.color;
j++;
buf += 2;
}
else
for (LocusHistory::Data& hist_data : hist->data) {
vec3 pos = hist_data.translation;
float_t v00;
float_t v01;
CalcDispLocusSetPivot(pivot,
hist_data.scale * elem->scale.x * elem->scale_all,
v00, v01);
buf[0].position = pos + x_vec * v00;
buf[0].uv[0].x = uv_u;
buf[0].uv[0].y = uv_v_2nd + (float_t)j * uv_v_scale;
buf[0].uv[1] = buf[0].uv[0];
buf[0].color = hist_data.color;
buf[1].position = pos + x_vec * v01;
buf[1].uv[0].x = uv_u_2nd;
buf[1].uv[0].y = uv_v_2nd + (float_t)j * uv_v_scale;
buf[1].uv[1] = buf[1].uv[0];
buf[1].color = hist_data.color;
j++;
buf += 2;
}
if (j > 0) {
disp += j;
rend_group->draw_list.push_back((GLint)index, (GLsizei)(j * 2));
index += j * 2;
}
}
rend_group->disp = disp;
rend_group->vbo.UnmapMemory();
}
void F2RenderScene::CalcDispQuad(GPM, F2RenderGroup* rend_group) {
if (!rend_group->elements || rend_group->vbo.IsNull() || rend_group->ctrl < 1)
return;
mat4 model_mat;
mat4 view_mat;
mat4 inv_view_mat;
if (rend_group->flags & PARTICLE_EMITTER_LOCAL) {
model_mat = rend_group->mat;
mat4_normalize_rotation(&model_mat, &view_mat);
mat4_mul(&view_mat, &GPM_VAL->cam.view, &view_mat);
mat4_invert(&view_mat, &inv_view_mat);
}
else {
model_mat = mat4_identity;
view_mat = GPM_VAL->cam.view;
inv_view_mat = GPM_VAL->cam.inv_view;
}
if (rend_group->flags & PARTICLE_LOCAL) {
mat4_mul(&inv_view_mat, &rend_group->mat, &inv_view_mat);
mat4_mul(&view_mat, &inv_view_mat, &view_mat);
mat4_invert(&view_mat, &inv_view_mat);
}
mat4_mul(&view_mat, &GPM_VAL->cam.inv_view, &rend_group->mat_draw);
mat4 dir_mat;
switch (rend_group->draw_type) {
case DIRECTION_BILLBOARD:
mat4_clear_trans(&model_mat, &dir_mat);
mat4_mul(&dir_mat, &inv_view_mat, &dir_mat);
mat4_clear_trans(&dir_mat, &dir_mat);
break;
case DIRECTION_EMITTER_DIRECTION:
mat4_clear_trans(&rend_group->mat_rot, &dir_mat);
break;
case DIRECTION_PREV_POSITION:
case DIRECTION_EMIT_POSITION:
case DIRECTION_PREV_POSITION_DUP:
if (rend_group->flags & PARTICLE_EMITTER_LOCAL)
mat4_clear_trans(&rend_group->mat_rot, &dir_mat);
else
dir_mat = mat4_identity;
break;
case DIRECTION_Y_AXIS:
mat4_rotate_y((float_t)-M_PI_2, &dir_mat);
break;
case DIRECTION_X_AXIS:
mat4_rotate_x((float_t)-M_PI_2, &dir_mat);
break;
case DIRECTION_Z_AXIS:
mat4_rotate_z((float_t)-M_PI_2, &dir_mat);
break;
case DIRECTION_BILLBOARD_Y_AXIS:
mat4_rotate_y(GPM_VAL->cam.rotation_y, &dir_mat);
break;
default:
dir_mat = mat4_identity;
break;
}
switch (rend_group->draw_type) {
case DIRECTION_PREV_POSITION:
case DIRECTION_EMIT_POSITION:
case DIRECTION_PREV_POSITION_DUP:
CalcDispQuadDirectionRotation(rend_group, &model_mat, &dir_mat);
break;
default:
CalcDispQuadNormal(GPM_VAL, rend_group, &model_mat, &dir_mat);
break;
}
}
void F2RenderScene::CalcDispQuadDirectionRotation(
F2RenderGroup* rend_group, mat4* model_mat, mat4* dir_mat) {
mat4 inv_model_mat;
mat4_invert(model_mat, &inv_model_mat);
mat4_clear_trans(&inv_model_mat, &inv_model_mat);
vec3 x_vec_base = { 1.0f, 0.0f, 0.0f };
vec3 y_vec_base = { 0.0f, 1.0f, 0.0f };
mat4_transform_vector(&inv_model_mat, &x_vec_base, &x_vec_base);
mat4_transform_vector(&inv_model_mat, &y_vec_base, &y_vec_base);
vec3 up_vec;
mat4(*rotate_func)(F2RenderGroup*, RenderElement*, vec3*);
if (rend_group->draw_type == DIRECTION_EMIT_POSITION) {
up_vec = { 0.0f, 0.0f, 1.0f };
rotate_func = F2RenderGroup::RotateToEmitPosition;
}
else {
up_vec = { 0.0f, 1.0f, 0.0f };
rotate_func = F2RenderGroup::RotateToPrevPosition;
}
vec3 scale;
mat4_get_scale(model_mat, &scale);
Buffer* buf = (Buffer*)rend_group->vbo.MapMemory();
if (!buf)
return;
bool use_scale = rend_group->flags & PARTICLE_SCALE ? true : false;
RenderElement* elem = rend_group->elements;
vec2 split_uv = rend_group->split_uv;
Pivot pivot = rend_group->pivot;
size_t disp = 0;
for (size_t i = rend_group->ctrl, j_max = 1024; i > 0; i -= j_max) {
j_max = min_def(i, j_max);
for (size_t j = j_max; j > 0; elem++) {
if (!elem->alive)
continue;
j--;
if (!elem->disp)
continue;
vec2 scale_particle = *(vec2*)&elem->scale * elem->scale_particle * elem->scale_all;
if (fabsf(scale_particle.x) < 0.000001f || fabsf(scale_particle.y) < 0.000001f)
continue;
vec3 pos = elem->translation;
float_t v00;
float_t v01;
float_t v10;
float_t v11;
CalcDispQuadSetPivot(pivot,
scale_particle.x, scale_particle.y,
v00, v01, v10, v11);
vec2 pos_add[4];
vec2 uv_add[4];
pos_add[0].x = v00;
pos_add[0].y = v11;
uv_add[0].x = 0.0f;
uv_add[0].y = 0.0f;
pos_add[1].x = v00;
pos_add[1].y = v10;
uv_add[1].x = 0.0f;
uv_add[1].y = split_uv.y;
pos_add[2].x = v01;
pos_add[2].y = v10;
uv_add[2].x = split_uv.x;
uv_add[2].y = split_uv.y;
pos_add[3].x = v01;
pos_add[3].y = v11;
uv_add[3].x = split_uv.x;
uv_add[3].y = 0.0f;
vec2 uv = elem->uv + elem->uv_scroll;
mat4 mat = rotate_func(rend_group, elem, &up_vec);
mat4_clear_trans(&mat, &mat);
mat4_mul(dir_mat, &mat, &mat);
mat4_clear_trans(&mat, &mat);
vec3 x_vec;
mat4_transform_vector(&mat, &x_vec_base, &x_vec);
vec3 y_vec;
mat4_transform_vector(&mat, &y_vec_base, &y_vec);
if (use_scale) {
x_vec *= scale;
y_vec *= scale;
}
float_t rot_z_cos = elem->rot_z_cos;
float_t rot_z_sin = elem->rot_z_sin;
for (int32_t k = 0; k < 4; k++, buf++) {
vec3 x_vec_rot = x_vec * (pos_add[k].x * rot_z_cos - pos_add[k].y * rot_z_sin);
vec3 y_vec_rot = y_vec * (pos_add[k].x * rot_z_sin + pos_add[k].y * rot_z_cos);
buf->position = pos + (x_vec_rot + y_vec_rot);
buf->uv[0] = uv + uv_add[k];
buf->uv[1] = buf->uv[0];
buf->color = elem->color;
}
disp++;
}
}
rend_group->disp = disp;
rend_group->vbo.UnmapMemory();
}
void F2RenderScene::CalcDispQuadNormal(GPM,
F2RenderGroup* rend_group, mat4* model_mat, mat4* dir_mat) {
mat4 inv_model_mat;
mat4_invert(model_mat, &inv_model_mat);
mat4_clear_trans(&inv_model_mat, &inv_model_mat);
vec3 x_vec = { 1.0f, 0.0f, 0.0f };
vec3 y_vec = { 0.0f, 1.0f, 0.0f };
bool use_z_offset = false;
vec3 dist_to_cam = 0.0f;
mat4 z_offset_inv_mat = mat4_identity;
if (fabsf(rend_group->z_offset) > 0.000001f) {
use_z_offset = true;
mat4_get_translation(model_mat, &dist_to_cam);
dist_to_cam = GPM_VAL->cam.view_point - dist_to_cam;
if (rend_group->flags & PARTICLE_EMITTER_LOCAL) {
mat4_normalize_rotation(model_mat, &z_offset_inv_mat);
mat4_invert(&z_offset_inv_mat, &z_offset_inv_mat);
}
}
bool has_scale = false;
bool emitter_local = false;
vec3 scale = 0.0f;
if (rend_group->flags & PARTICLE_EMITTER_LOCAL) {
mat4_get_scale(model_mat, &scale);
if (rend_group->flags & PARTICLE_SCALE) {
x_vec.x = scale.x;
y_vec.y = scale.y;
}
scale -= 1.0f;
if (!(has_scale |= fabsf(scale.x) > 0.000001f ? true : false))
scale.x = 0.0f;
if (!(has_scale |= fabsf(scale.y) > 0.000001f ? true : false))
scale.y = 0.0f;
if (!(has_scale |= fabsf(scale.z) > 0.000001f ? true : false))
scale.z = 0.0f;
mat4_transform_vector(&rend_group->mat_rot, &scale, &scale);
emitter_local = true;
}
vec3 ext_anim_scale;
float_t ext_scale = 0.0f;
if (rend_group->GetExtAnimScale(&ext_anim_scale, &ext_scale)) {
if (ext_scale <= 0.0f)
ext_scale = 1.0f;
ext_anim_scale += ext_scale;
x_vec.x *= ext_anim_scale.x;
y_vec.y *= ext_anim_scale.y;
}
if (rend_group->draw_type != DIRECTION_BILLBOARD) {
mat4_transform_vector(dir_mat, &x_vec, &x_vec);
mat4_transform_vector(dir_mat, &y_vec, &y_vec);
}
else
mat4_mul(&inv_model_mat, dir_mat, &inv_model_mat);
mat4_transform_vector(&inv_model_mat, &x_vec, &x_vec);
mat4_transform_vector(&inv_model_mat, &y_vec, &y_vec);
Buffer* buf = (Buffer*)rend_group->vbo.MapMemory();
if (!buf)
return;
RenderElement* elem = rend_group->elements;
vec2 split_uv = rend_group->split_uv;
Pivot pivot = rend_group->pivot;
float_t z_offset = rend_group->z_offset;
size_t disp = 0;
if (rend_group->draw_type == DIRECTION_PARTICLE_ROTATION)
for (size_t i = rend_group->ctrl, j_max = 1024; i > 0; i -= j_max) {
j_max = min_def(i, j_max);
for (size_t j = j_max; j > 0; elem++) {
if (!elem->alive)
continue;
j--;
if (!elem->disp)
continue;
vec2 scale_particle = *(vec2*)&elem->scale * elem->scale_particle * elem->scale_all;
if (fabsf(scale_particle.x) < 0.000001f || fabsf(scale_particle.y) < 0.000001f)
continue;
vec3 pos = elem->translation;
if (has_scale) {
vec3 pos_diff = (pos - elem->base_translation) * scale;
mat4_transform_vector(&inv_model_mat, &pos_diff, &pos_diff);
pos += pos_diff;
}
float_t v00;
float_t v01;
float_t v11;
float_t v10;
CalcDispQuadSetPivot(pivot,
scale_particle.x, scale_particle.y,
v00, v01, v10, v11);
vec2 pos_add[4];
vec2 uv_add[4];
pos_add[0].x = v00;
pos_add[0].y = v11;
uv_add[0].x = 0.0f;
uv_add[0].y = 0.0f;
pos_add[1].x = v00;
pos_add[1].y = v10;
uv_add[1].x = 0.0f;
uv_add[1].y = split_uv.y;
pos_add[2].x = v01;
pos_add[2].y = v10;
uv_add[2].x = split_uv.x;
uv_add[2].y = split_uv.y;
pos_add[3].x = v01;
pos_add[3].y = v11;
uv_add[3].x = split_uv.x;
uv_add[3].y = 0.0f;
vec2 uv = elem->uv + elem->uv_scroll;
if (use_z_offset) {
vec3 z_offset_dir = vec3::normalize(dist_to_cam - pos);
if (emitter_local)
mat4_transform_vector(&z_offset_inv_mat, &z_offset_dir, &z_offset_dir);
pos += z_offset_dir * z_offset;
}
mat3 ptc_rot;
mat3_rotate_zyx(elem->rotation.x, elem->rotation.y, elem->rotation.z, &ptc_rot);
for (int32_t k = 0; k < 4; k++, buf++) {
vec3 xy_vec_rot;
xy_vec_rot.x = x_vec.x * pos_add[k].x;
xy_vec_rot.y = y_vec.y * pos_add[k].y;
xy_vec_rot.z = 0.0f;
mat3_transform_vector(&ptc_rot, &xy_vec_rot, &xy_vec_rot);
buf->position = pos + xy_vec_rot;
buf->uv[0] = uv + uv_add[k];
buf->uv[1] = buf->uv[0];
buf->color = elem->color;
}
disp++;
}
}
else
for (size_t i = rend_group->ctrl, j_max = 1024; i > 0; i -= j_max) {
j_max = min_def(i, j_max);
for (size_t j = j_max; j > 0; elem++) {
if (!elem->alive)
continue;
j--;
if (!elem->disp)
continue;
vec2 scale_particle = *(vec2*)&elem->scale * elem->scale_particle * elem->scale_all;
if (fabsf(scale_particle.x) < 0.000001f || fabsf(scale_particle.y) < 0.000001f)
continue;
vec3 pos = elem->translation;
if (has_scale) {
vec3 pos_diff = (pos - elem->base_translation) * scale;
mat4_transform_vector(&inv_model_mat, &pos_diff, &pos_diff);
pos += pos_diff;
}
float_t v00;
float_t v01;
float_t v11;
float_t v10;
CalcDispQuadSetPivot(pivot,
scale_particle.x, scale_particle.y,
v00, v01, v10, v11);
vec2 pos_add[4];
vec2 uv_add[4];
pos_add[0].x = v00;
pos_add[0].y = v11;
uv_add[0].x = 0.0f;
uv_add[0].y = 0.0f;
pos_add[1].x = v00;
pos_add[1].y = v10;
uv_add[1].x = 0.0f;
uv_add[1].y = split_uv.y;
pos_add[2].x = v01;
pos_add[2].y = v10;
uv_add[2].x = split_uv.x;
uv_add[2].y = split_uv.y;
pos_add[3].x = v01;
pos_add[3].y = v11;
uv_add[3].x = split_uv.x;
uv_add[3].y = 0.0f;
vec2 uv = elem->uv + elem->uv_scroll;
if (use_z_offset) {
vec3 z_offset_dir = vec3::normalize(dist_to_cam - pos);
if (emitter_local)
mat4_transform_vector(&z_offset_inv_mat, &z_offset_dir, &z_offset_dir);
pos += z_offset_dir * z_offset;
}
float_t rot_z_cos = elem->rot_z_cos;
float_t rot_z_sin = elem->rot_z_sin;
for (int32_t k = 0; k < 4; k++, buf++) {
vec3 x_vec_rot = x_vec * (rot_z_cos * pos_add[k].x - rot_z_sin * pos_add[k].y);
vec3 y_vec_rot = y_vec * (rot_z_sin * pos_add[k].x + rot_z_cos * pos_add[k].y);
buf->position = pos + (x_vec_rot + y_vec_rot);
buf->uv[0] = uv + uv_add[k];
buf->uv[1] = buf->uv[0];
buf->color = elem->color;
}
disp++;
}
}
rend_group->disp = disp;
rend_group->vbo.UnmapMemory();
}
void F2RenderScene::Ctrl(GLT, float_t delta_frame) {
ctrl_quad = 0;
ctrl_line = 0;
ctrl_locus = 0;
ctrl_mesh = 0;
for (F2RenderGroup*& i : groups) {
if (!i)
continue;
switch (i->type) {
case PARTICLE_QUAD:
ctrl_quad += i->ctrl;
break;
case PARTICLE_LINE:
ctrl_line += i->ctrl;
break;
case PARTICLE_LOCUS:
ctrl_locus += i->ctrl;
break;
}
i->Ctrl(GLT_VAL, delta_frame, true);
}
}
void F2RenderScene::Disp(GPM, DispType disp_type) {
Effect* eff = GPM_VAL->selected_effect;
Emitter* emit = GPM_VAL->selected_emitter;
Particle* ptcl = GPM_VAL->selected_particle;
for (F2RenderGroup*& i : groups) {
if (!i)
continue;
F2RenderGroup* rend_group = i;
if ((rend_group)->disp_type != disp_type
|| (rend_group->CannotDisp() && !GPM_VAL->draw_all))
continue;
if (!GPM_VAL->draw_selected || !eff) {
Disp(GPM_VAL, rend_group);
}
else if ((eff && ptcl) || (eff && !emit)) {
if (!ptcl || rend_group->particle->particle == ptcl)
Disp(GPM_VAL, rend_group);
}
else if (emit)
for (Particle*& j : emit->particles) {
if (!j)
continue;
Particle* particle = j;
if (rend_group->particle->particle == particle)
Disp(GPM_VAL, rend_group);
}
}
}
void F2RenderScene::Disp(GPM, F2RenderGroup* rend_group) {
switch (rend_group->type) {
case PARTICLE_QUAD:
case PARTICLE_LINE:
case PARTICLE_LOCUS:
break;
default:
return;
}
if (!rend_group->vao || rend_group->disp < 1)
return;
mat4 mat;
mat4_mul(&rend_group->mat_draw, &GPM_VAL->cam.view, &mat);
mat4_mul(&mat, &GPM_VAL->cam.projection, &mat);
float_t emission = 1.0f;
if (rend_group->flags & PARTICLE_EMISSION || rend_group->blend_mode == PARTICLE_BLEND_TYPICAL)
emission = rend_group->emission;
glitter_batch_shader_data shader_data = {};
mat4_transpose(&mat, &mat);
shader_data.g_mvp[0] = mat.row0;
shader_data.g_mvp[1] = mat.row1;
shader_data.g_mvp[2] = mat.row2;
shader_data.g_mvp[3] = mat.row3;
shader_data.g_glitter_blend_color = 1.0f;
shader_data.g_state_material_diffuse = 0.0f;
shader_data.g_state_material_emission = { emission, emission, emission, 1.0f };
rctx_ptr->glitter_batch_ubo.WriteMemory(shader_data);
GLenum blend_src = GL_SRC_ALPHA;
GLenum blend_dst = GL_ONE_MINUS_SRC_ALPHA;
switch (rend_group->blend_mode) {
case PARTICLE_BLEND_ADD:
blend_src = GL_SRC_ALPHA;
blend_dst = GL_ONE;
break;
case PARTICLE_BLEND_MULTIPLY:
blend_src = GL_ZERO;
blend_dst = GL_SRC_COLOR;
break;
}
gl_state_enable_blend();
gl_state_set_blend_func(blend_src, blend_dst);
gl_state_set_blend_equation(GL_FUNC_ADD);
GLuint texture = rctx_ptr->empty_texture_2d->glid;
GLuint mask_texture = rctx_ptr->empty_texture_2d->glid;
if (rend_group->type != PARTICLE_LINE && rend_group->texture) {
texture = rend_group->texture;
if (rend_group->mask_texture) {
mask_texture = rend_group->mask_texture;
uniform_value[U_TEXTURE_COUNT] = 2;
switch (rend_group->mask_blend_mode) {
default:
uniform_value[U_TEXTURE_BLEND] = 0;
break;
case PARTICLE_BLEND_MULTIPLY:
uniform_value[U_TEXTURE_BLEND] = 1;
break;
case PARTICLE_BLEND_ADD:
uniform_value[U_TEXTURE_BLEND] = 2;
break;
}
}
else {
uniform_value[U_TEXTURE_COUNT] = 1;
uniform_value[U_TEXTURE_BLEND] = 0;
}
}
else {
uniform_value[U_TEXTURE_COUNT] = 0;
uniform_value[U_TEXTURE_BLEND] = 0;
}
gl_state_active_bind_texture_2d(0, texture);
gl_state_active_bind_texture_2d(1, mask_texture);
switch (rend_group->type) {
case PARTICLE_QUAD:
switch (rend_group->fog_type) {
default:
uniform_value[U_FOG_STAGE] = 0;
break;
case Glitter::FOG_DEPTH:
uniform_value[U_FOG_STAGE] = 1;
break;
case Glitter::FOG_HEIGHT:
uniform_value[U_FOG_STAGE] = 2;
break;
}
if (rend_group->blend_mode == PARTICLE_BLEND_PUNCH_THROUGH) {
uniform_value[U_ALPHA_BLEND] = 1;
gl_state_enable_depth_test();
gl_state_set_depth_mask(GL_TRUE);
}
else {
uniform_value[U_ALPHA_BLEND] = rend_group->disp_type ? 2 : 0;
gl_state_enable_depth_test();
gl_state_set_depth_mask(GL_FALSE);
}
if (rend_group->draw_type == DIRECTION_BILLBOARD) {
gl_state_enable_cull_face();
gl_state_set_cull_face_mode(GL_BACK);
}
else
gl_state_disable_cull_face();
break;
case PARTICLE_LINE:
uniform_value[U_FOG_STAGE] = 0;
uniform_value[U_ALPHA_BLEND] = 2;
gl_state_enable_depth_test();
gl_state_set_depth_mask(GL_FALSE);
gl_state_enable_cull_face();
gl_state_set_cull_face_mode(GL_BACK);
break;
case PARTICLE_LOCUS:
uniform_value[U_FOG_STAGE] = 0;
uniform_value[U_ALPHA_BLEND] = 2;
gl_state_enable_depth_test();
gl_state_set_depth_mask(GL_FALSE);
gl_state_disable_cull_face();
break;
}
rctx_ptr->obj_shader.set_shader_flags(uniform_value);
rctx_ptr->obj_shader_ubo.WriteMemory(rctx_ptr->obj_shader);
shaders_ft.set(SHADER_FT_GLITTER_PT);
rctx_ptr->obj_shader_ubo.Bind(0);
rctx_ptr->obj_scene_ubo.Bind(1);
rctx_ptr->glitter_batch_ubo.Bind(3);
switch (rend_group->type) {
case PARTICLE_QUAD:
gl_state_bind_vertex_array(rend_group->vao);
shaders_ft.enable_primitive_restart();
shaders_ft.draw_elements(GL_TRIANGLE_STRIP, (GLsizei)(5 * rend_group->disp - 1), GL_UNSIGNED_INT, 0);
shaders_ft.disable_primitive_restart();
break;
case PARTICLE_LINE:
gl_state_bind_vertex_array(rend_group->vao);
for (std::pair<GLint, GLsizei>& i : rend_group->draw_list)
shaders_ft.draw_arrays(GL_LINE_STRIP, i.first, i.second);
break;
case PARTICLE_LOCUS:
gl_state_bind_vertex_array(rend_group->vao);
for (std::pair<GLint, GLsizei>& i : rend_group->draw_list)
shaders_ft.draw_arrays(GL_TRIANGLE_STRIP, i.first, i.second);
break;
}
}
XRenderScene::XRenderScene() {
}
XRenderScene::~XRenderScene() {
for (XRenderGroup*& i : groups)
delete i;
}
void XRenderScene::Append(XRenderGroup* rend_group) {
groups.push_back(rend_group);
}
void XRenderScene::CalcDisp(GPM) {
disp_quad = 0;
disp_line = 0;
disp_locus = 0;
disp_mesh = 0;
Effect* eff = GPM_VAL->selected_effect;
Emitter* emit = GPM_VAL->selected_emitter;
Particle* ptcl = GPM_VAL->selected_particle;
for (XRenderGroup*& i : groups) {
if (!i)
continue;
XRenderGroup* rend_group = i;
if (rend_group->CannotDisp() && !GPM_VAL->draw_all)
continue;
if (!GPM_VAL->draw_selected || !eff) {
CalcDisp(GPM_VAL, rend_group);
}
else if ((eff && ptcl) || (eff && !emit)) {
if (!ptcl || rend_group->particle->particle == ptcl)
CalcDisp(GPM_VAL, rend_group);
}
else if (emit)
for (Particle*& j : emit->particles) {
if (!j)
continue;
Particle* particle = j;
if (rend_group->particle->particle == particle)
CalcDisp(GPM_VAL, rend_group);
}
}
}
void XRenderScene::CalcDisp(GPM, XRenderGroup* rend_group) {
rend_group->disp = 0;
switch (rend_group->type) {
case PARTICLE_QUAD:
if (!rend_group->vao)
return;
CalcDispQuad(GPM_VAL, rend_group);
disp_quad += rend_group->disp;
break;
case PARTICLE_LINE:
if (!rend_group->vao)
return;
CalcDispLine(rend_group);
disp_line += rend_group->disp;
break;
case PARTICLE_LOCUS:
if (!rend_group->vao)
return;
CalcDispLocus(GPM_VAL, rend_group);
disp_locus += rend_group->disp;
break;
case PARTICLE_MESH:
CalcDispMesh(GPM_VAL, rend_group);
disp_mesh += rend_group->disp;
break;
}
}
void XRenderScene::CalcDispLine(XRenderGroup* rend_group) {
if (!rend_group->elements || rend_group->vbo.IsNull() || rend_group->ctrl < 1)
return;
size_t count = 0;
RenderElement* elem = rend_group->elements;
for (size_t i = rend_group->ctrl; i > 0; i--, elem++) {
if (!elem->alive)
continue;
if (elem->locus_history) {
size_t length = elem->locus_history->data.size();
if (length > 1)
count += length;
}
}
if (!count || count > rend_group->max_count)
return;
bool has_scale = false;
vec3 scale = 0.0f;
if (rend_group->flags & PARTICLE_EMITTER_LOCAL) {
rend_group->GetEmitterScale(scale);
if (!(has_scale |= fabsf(scale.x) > 0.000001f ? true : false))
scale.x = 0.0f;
if (!(has_scale |= fabsf(scale.y) > 0.000001f ? true : false))
scale.y = 0.0f;
if (!(has_scale |= fabsf(scale.z) > 0.000001f ? true : false))
scale.z = 0.0f;
mat4_normalize_rotation(&rend_group->mat, &rend_group->mat_draw);
}
else
rend_group->mat_draw = mat4_identity;
Buffer* buf = (Buffer*)rend_group->vbo.MapMemory();
if (!buf)
return;
elem = rend_group->elements;
size_t disp = 0;
rend_group->draw_list.clear();
for (size_t i = rend_group->ctrl, index = 0; i > 0; elem++) {
if (!elem->alive)
continue;
i--;
LocusHistory* hist = elem->locus_history;
if (!elem->disp || !hist || hist->data.size() < 2)
continue;
size_t j = 0;
if (has_scale)
for (LocusHistory::Data& hist_data : hist->data) {
vec3& pos = hist_data.translation;
buf->position = pos + (pos - elem->base_translation) * scale;
buf->uv[0] = 0.0f;
buf->uv[1] = 0.0f;
buf->color = hist_data.color;
j++;
buf++;
}
else
for (LocusHistory::Data& hist_data : hist->data) {
buf->position = hist_data.translation;
buf->uv[0] = 0.0f;
buf->uv[1] = 0.0f;
buf->color = hist_data.color;
j++;
buf++;
}
if (j > 0) {
disp += j;
rend_group->draw_list.push_back((GLint)index, (GLsizei)j);
index += j;
}
}
rend_group->disp = disp;
rend_group->vbo.UnmapMemory();
}
void XRenderScene::CalcDispLocus(GPM, XRenderGroup* rend_group) {
if (!rend_group->elements || rend_group->vbo.IsNull() || rend_group->ctrl < 1)
return;
size_t count = 0;
RenderElement* elem = rend_group->elements;
for (size_t i = rend_group->ctrl; i > 0; i--, elem++) {
if (!elem->alive)
continue;
if (elem->locus_history) {
size_t length = elem->locus_history->data.size();
if (length > 1)
count += 2 * length;
}
}
if (!count || count > rend_group->max_count)
return;
vec3 x_vec = { 1.0f, 0.0f, 0.0f };
if (rend_group->flags & PARTICLE_LOCAL) {
mat4 mat;
mat4_mul(&GPM_VAL->cam.inv_view, &rend_group->mat, &mat);
mat4_mul(&GPM_VAL->cam.view, &mat, &mat);
mat4_mul(&mat, &GPM_VAL->cam.inv_view, &rend_group->mat_draw);
}
else
rend_group->mat_draw = mat4_identity;
mat3 model_mat;
bool has_scale = false;
vec3 scale = 0.0f;
if (rend_group->flags & PARTICLE_EMITTER_LOCAL) {
mat4_get_scale(&rend_group->mat, &scale);
if (rend_group->flags & PARTICLE_SCALE)
x_vec.x = scale.x;
scale -= 1.0f;
if (!(has_scale |= fabsf(scale.x) > 0.000001f ? true : false))
scale.x = 0.0f;
if (!(has_scale |= fabsf(scale.y) > 0.000001f ? true : false))
scale.y = 0.0f;
if (!(has_scale |= fabsf(scale.z) > 0.000001f ? true : false))
scale.z = 0.0f;
mat4_to_mat3(&rend_group->mat, &model_mat);
mat3_normalize_rotation(&model_mat, &model_mat);
}
else
model_mat = mat3_identity;
mat3_transform_vector(&GPM_VAL->cam.inv_view_mat3, &x_vec, &x_vec);
Buffer* buf = (Buffer*)rend_group->vbo.MapMemory();
if (!buf)
return;
elem = rend_group->elements;
vec2 split_uv = rend_group->split_uv;
Pivot pivot = rend_group->pivot;
size_t disp = 0;
rend_group->draw_list.clear();
for (size_t i = rend_group->ctrl, index = 0; i > 0; elem++) {
if (!elem->alive)
continue;
i--;
LocusHistory* hist = elem->locus_history;
if (!elem->disp || !hist || hist->data.size() < 2)
continue;
float_t uv_u = elem->uv.x + elem->uv_scroll.x;
float_t uv_u_2nd = elem->uv.x + elem->uv_scroll.x + split_uv.x;
float_t uv_v_2nd = elem->uv.y + elem->uv_scroll.y + split_uv.y;
float_t uv_v_scale = split_uv.y / (float_t)(hist->data.size() - 1);
uv_v_2nd = 1.0f - uv_v_2nd;
size_t j = 0;
if (has_scale)
for (LocusHistory::Data& hist_data : hist->data) {
vec3 pos = hist_data.translation;
vec3 pos_diff = (pos - elem->base_translation) * scale;
mat3_transform_vector(&model_mat, &pos_diff, &pos_diff);
pos += pos_diff;
float_t v00;
float_t v01;
CalcDispLocusSetPivot(pivot,
hist_data.scale * elem->scale.x * elem->scale_all,
v00, v01);
buf[0].position = pos + x_vec * v00;
buf[0].uv[0].x = uv_u;
buf[0].uv[0].y = uv_v_2nd + (float_t)j * uv_v_scale;
buf[0].uv[1] = buf[0].uv[0];
buf[0].color = hist_data.color;
buf[1].position = pos + x_vec * v01;
buf[1].uv[0].x = uv_u_2nd;
buf[1].uv[0].y = uv_v_2nd + (float_t)j * uv_v_scale;
buf[1].uv[1] = buf[1].uv[0];
buf[1].color = hist_data.color;
j++;
buf += 2;
}
else
for (LocusHistory::Data& hist_data : hist->data) {
vec3 pos = hist_data.translation;
float_t v00;
float_t v01;
CalcDispLocusSetPivot(pivot,
hist_data.scale * elem->scale.x * elem->scale_all,
v00, v01);
buf[0].position = pos + x_vec * v00;
buf[0].uv[0].x = uv_u;
buf[0].uv[0].y = uv_v_2nd + (float_t)j * uv_v_scale;
buf[0].uv[1] = buf[0].uv[0];
buf[0].color = hist_data.color;
buf[1].position = pos + x_vec * v01;
buf[1].uv[0].x = uv_u_2nd;
buf[1].uv[0].y = uv_v_2nd + (float_t)j * uv_v_scale;
buf[1].uv[1] = buf[1].uv[0];
buf[1].color = hist_data.color;
j++;
buf += 2;
}
if (j > 0) {
disp += j;
rend_group->draw_list.push_back((GLint)index, (GLsizei)(j * 2));
index += j * 2;
}
}
rend_group->disp = disp;
rend_group->vbo.UnmapMemory();
}
void XRenderScene::CalcDispMesh(GPM, XRenderGroup* rend_group) {
if (rend_group->object_name_hash == hash_murmurhash_empty
|| rend_group->object_name_hash == 0xFFFFFFFF)
return;
bool has_scale = false;
bool emitter_local = false;
vec3 emit_scale = 0.0f;
mat4 model_mat;
mat4 view_mat;
mat4 inv_view_mat;
if (rend_group->flags & PARTICLE_EMITTER_LOCAL) {
model_mat = rend_group->mat;
mat4_normalize_rotation(&model_mat, &view_mat);
mat4_mul(&view_mat, &GPM_VAL->cam.view, &view_mat);
mat4_invert(&view_mat, &inv_view_mat);
emitter_local = true;
if (rend_group->flags & PARTICLE_SCALE) {
if (rend_group->GetEmitterScale(emit_scale))
has_scale = true;
}
}
else {
model_mat = mat4_identity;
view_mat = GPM_VAL->cam.view;
inv_view_mat = GPM_VAL->cam.inv_view;
}
bool local = false;
if (rend_group->flags & PARTICLE_LOCAL) {
mat4_mul(&inv_view_mat, &rend_group->mat, &inv_view_mat);
mat4_mul(&view_mat, &inv_view_mat, &view_mat);
mat4_invert(&view_mat, &inv_view_mat);
local = true;
}
mat4_mul(&view_mat, &GPM_VAL->cam.inv_view, &rend_group->mat_draw);
mat4 dir_mat = mat4_identity;
vec3 up_vec = { 0.0f, 0.0f, 1.0f };
bool billboard = false;
bool emitter_rotation = false;
mat4(*rotate_func)(XRenderGroup*, RenderElement*, vec3*, vec3*) = 0;
switch (rend_group->draw_type) {
case DIRECTION_BILLBOARD:
mat4_clear_trans(&model_mat, &dir_mat);
mat4_mul(&dir_mat, &inv_view_mat, &dir_mat);
mat4_clear_trans(&dir_mat, &dir_mat);
billboard = true;
break;
case DIRECTION_EMITTER_DIRECTION:
dir_mat = rend_group->mat_rot;
break;
case DIRECTION_PREV_POSITION:
case DIRECTION_PREV_POSITION_DUP:
rotate_func = XRenderGroup::RotateMeshToPrevPosition;
break;
case DIRECTION_EMIT_POSITION:
rotate_func = XRenderGroup::RotateMeshToEmitPosition;
break;
case DIRECTION_Y_AXIS:
mat4_rotate_y((float_t)M_PI_2, &dir_mat);
break;
case DIRECTION_X_AXIS:
mat4_rotate_x((float_t)-M_PI_2, &dir_mat);
break;
case DIRECTION_BILLBOARD_Y_AXIS:
mat4_rotate_y(GPM_VAL->cam.rotation_y, &dir_mat);
break;
case DIRECTION_EMITTER_ROTATION:
emitter_rotation = true;
break;
}
Particle* particle = rend_group->particle->data.particle;
object_info object_info;
object_info.set_id = (uint32_t)particle->data.mesh.object_set_name_hash;
object_info.id = (uint32_t)particle->data.mesh.object_name_hash;
obj* obj = objset_info_storage_get_obj(object_info);
if (!obj)
return;
texture_transform_struct tex_trans[2];
int32_t tex_trans_count = 0;
for (texture_transform_struct& i : tex_trans) {
tex_trans->id = hash_murmurhash_empty;
tex_trans->mat = mat4_identity;
}
obj_material& material = obj->material_array[0].material;
for (obj_material_texture_data& i : material.texdata) {
if (i.tex_index == hash_murmurhash_empty || i.tex_index == hash_murmurhash_null)
continue;
tex_trans[tex_trans_count].id = i.tex_index;
tex_trans[tex_trans_count].mat = mat4_identity;
tex_trans_count++;
if (++tex_trans_count == 2)
break;
}
vec3 ext_anim_scale;
float_t ext_scale = 0.0f;
if (rend_group->GetExtAnimScale(&ext_anim_scale, &ext_scale)) {
if (!has_scale) {
emit_scale = 1.0f;
has_scale = true;
}
if (ext_scale >= 0.0f)
emit_scale *= ext_anim_scale + ext_scale;
else
emit_scale += ext_anim_scale;
}
mdl::DispManager& disp_manager = *rctx_ptr->disp_manager;
disp_manager.set_texture_pattern(0, 0);
RenderElement* elem = rend_group->elements;
size_t disp = 0;
for (size_t i = rend_group->ctrl, j_max = 1024; i > 0; i -= j_max) {
j_max = min_def(i, j_max);
for (size_t j = j_max; j > 0; elem++) {
if (!elem->alive)
continue;
j--;
if (!elem->disp)
continue;
vec3 trans = elem->translation;
vec3 rot = elem->rotation;
vec3 scale = elem->scale * elem->scale_all;
if (has_scale)
scale *= emit_scale;
if (emitter_local)
mat4_transform_point(&model_mat, &trans, &trans);
mat4 mat;
if (billboard) {
if (local)
mat = mat4_identity;
else
mat = dir_mat;
}
else if (rotate_func) {
mat = rotate_func(rend_group, elem, &up_vec, &trans);
}
else if (emitter_rotation)
mat = elem->mat;
else
mat = dir_mat;
mat4_set_translation(&mat, &trans);
mat4_mul_rotate_zyx(&mat, &rot, &mat);
mat4_scale_rot(&mat, &scale, &mat);
vec3 uv_scroll;
vec3 uv_scroll_2nd;
uv_scroll.x = elem->uv_scroll.x;
uv_scroll.y = -elem->uv_scroll.y;
uv_scroll.z = 0.0f;
uv_scroll_2nd.x = elem->uv_scroll_2nd.x;
uv_scroll_2nd.y = -elem->uv_scroll_2nd.y;
uv_scroll_2nd.z = 0.0f;
mat4_set_translation(&tex_trans[0].mat, &uv_scroll);
mat4_set_translation(&tex_trans[1].mat, &uv_scroll_2nd);
disp_manager.set_texture_transform(tex_trans_count, tex_trans);
if (local)
mat4_mul(&mat, &GPM_VAL->cam.inv_view, &mat);
elem->mat_draw = mat;
if (disp_manager.entry_obj_by_object_info(
&mat, object_info, &elem->color, 0, local))
disp++;
disp_manager.set_texture_transform(0, 0);
}
}
disp_manager.set_texture_pattern(0, 0);
rend_group->disp = disp;
}
void XRenderScene::CalcDispQuad(GPM, XRenderGroup* rend_group) {
if (!rend_group->elements || rend_group->vbo.IsNull() || rend_group->ctrl < 1)
return;
mat4 model_mat;
mat4 view_mat;
mat4 inv_view_mat;
if (rend_group->flags & PARTICLE_EMITTER_LOCAL) {
if (rend_group->draw_type == DIRECTION_EMITTER_ROTATION
|| rend_group->draw_type == DIRECTION_PARTICLE_ROTATION)
mat4_clear_rot(&rend_group->mat, &model_mat);
else
mat4_normalize_rotation(&rend_group->mat, &model_mat);
mat4_mul(&model_mat, &GPM_VAL->cam.view, &view_mat);
mat4_invert(&view_mat, &inv_view_mat);
}
else {
model_mat = mat4_identity;
view_mat = GPM_VAL->cam.view;
inv_view_mat = GPM_VAL->cam.inv_view;
}
if (rend_group->flags & PARTICLE_LOCAL) {
if (rend_group->flags & PARTICLE_EMITTER_LOCAL)
mat4_mul(&inv_view_mat, &rend_group->mat, &inv_view_mat);
mat4_mul(&view_mat, &inv_view_mat, &view_mat);
mat4_invert(&view_mat, &inv_view_mat);
}
mat4_mul(&view_mat, &GPM_VAL->cam.inv_view, &rend_group->mat_draw);
mat4 dir_mat;
switch (rend_group->draw_type) {
case DIRECTION_BILLBOARD:
mat4_clear_trans(&model_mat, &dir_mat);
mat4_mul(&dir_mat, &inv_view_mat, &dir_mat);
mat4_clear_trans(&dir_mat, &dir_mat);
break;
case DIRECTION_EMITTER_DIRECTION:
case DIRECTION_EMITTER_ROTATION:
case DIRECTION_PARTICLE_ROTATION:
dir_mat = rend_group->mat_rot;
break;
case DIRECTION_Y_AXIS:
mat4_rotate_y((float_t)M_PI_2, &dir_mat);
break;
case DIRECTION_X_AXIS:
mat4_rotate_x((float_t)-M_PI_2, &dir_mat);
break;
case DIRECTION_BILLBOARD_Y_AXIS:
mat4_rotate_y(GPM_VAL->cam.rotation_y, &dir_mat);
break;
default:
dir_mat = mat4_identity;
break;
}
switch (rend_group->draw_type) {
case DIRECTION_PREV_POSITION:
case DIRECTION_EMIT_POSITION:
case DIRECTION_PREV_POSITION_DUP:
CalcDispQuadDirectionRotation(rend_group, &model_mat);
break;
default:
CalcDispQuadNormal(rend_group, &model_mat, &dir_mat);
break;
}
}
void XRenderScene::CalcDispQuadDirectionRotation(XRenderGroup* rend_group, mat4* model_mat) {
vec3 up_vec;
mat4(*rotate_func)(XRenderGroup*, RenderElement*, vec3*);
if (rend_group->draw_type == DIRECTION_EMIT_POSITION) {
up_vec = { 0.0f, 0.0f, 1.0f };
rotate_func = XRenderGroup::RotateToEmitPosition;
}
else {
up_vec = { 0.0f, 1.0f, 0.0f };
rotate_func = XRenderGroup::RotateToPrevPosition;
}
bool use_scale = false;
vec3 scale = 1.0f;
if (rend_group->flags & PARTICLE_EMITTER_LOCAL
&& rend_group->GetEmitterScale(scale))
use_scale = rend_group->flags & PARTICLE_SCALE ? true : false;
vec3 x_vec_base = { 1.0f, 0.0f, 0.0f };
vec3 y_vec_base = { 0.0f, 1.0f, 0.0f };
if (use_scale) {
x_vec_base.x *= scale.x;
y_vec_base.y *= scale.y;
}
Buffer* buf = (Buffer*)rend_group->vbo.MapMemory();
if (!buf)
return;
RenderElement* elem = rend_group->elements;
vec2 split_uv = rend_group->split_uv;
Pivot pivot = rend_group->pivot;
size_t disp = 0;
for (size_t i = rend_group->ctrl, j_max = 1024; i > 0; i -= j_max) {
j_max = min_def(i, j_max);
for (size_t j = j_max; j > 0; elem++) {
if (!elem->alive)
continue;
j--;
if (!elem->disp)
continue;
vec2 scale_particle = *(vec2*)&elem->scale * elem->scale_particle * elem->scale_all;
if (fabsf(scale_particle.x) < 0.000001f || fabsf(scale_particle.y) < 0.000001f)
continue;
vec3 pos = elem->translation;
if (use_scale)
pos *= scale;
float_t v00;
float_t v01;
float_t v10;
float_t v11;
CalcDispQuadSetPivot(pivot,
scale_particle.x, scale_particle.y,
v00, v01, v10, v11);
vec2 pos_add[4];
vec2 uv_add[4];
pos_add[0].x = v00;
pos_add[0].y = v11;
uv_add[0].x = 0.0f;
uv_add[0].y = 0.0f;
pos_add[1].x = v00;
pos_add[1].y = v10;
uv_add[1].x = 0.0f;
uv_add[1].y = split_uv.y;
pos_add[2].x = v01;
pos_add[2].y = v10;
uv_add[2].x = split_uv.x;
uv_add[2].y = split_uv.y;
pos_add[3].x = v01;
pos_add[3].y = v11;
uv_add[3].x = split_uv.x;
uv_add[3].y = 0.0f;
vec3 x_vec = x_vec_base;
vec3 y_vec = y_vec_base;
if (fabsf(elem->rotation.z) > 0.000001f) {
mat3 ptc_rot;
mat3_rotate_z(elem->rot_z_sin, elem->rot_z_cos, &ptc_rot);
mat3_transform_vector(&ptc_rot, &x_vec, &x_vec);
mat3_transform_vector(&ptc_rot, &y_vec, &y_vec);
}
vec2 uv = elem->uv + elem->uv_scroll;
mat4 mat = rotate_func(rend_group, elem, &up_vec);
mat4_transform_vector(&mat, &x_vec, &x_vec);
mat4_transform_vector(&mat, &y_vec, &y_vec);
for (int32_t k = 0; k < 4; k++, buf++) {
vec3 x_vec_rot = pos_add[k].x * x_vec;
vec3 y_vec_rot = pos_add[k].y * y_vec;
buf->position = pos + (x_vec_rot + y_vec_rot);
buf->uv[0] = uv + uv_add[k];
buf->uv[1] = buf->uv[0];
buf->color = elem->color;
}
disp++;
}
}
rend_group->disp = disp;
rend_group->vbo.UnmapMemory();
}
void XRenderScene::CalcDispQuadNormal(XRenderGroup* rend_group, mat4* model_mat, mat4* dir_mat) {
mat4 inv_model_mat;
mat4_invert(model_mat, &inv_model_mat);
mat4_clear_trans(&inv_model_mat, &inv_model_mat);
vec3 x_vec = { 1.0f, 0.0f, 0.0f };
vec3 y_vec = { 0.0f, 1.0f, 0.0f };
bool use_z_offset = false;
vec3 dist_to_cam = 0.0f;
mat4 z_offset_inv_mat = mat4_identity;
if (fabsf(rend_group->z_offset) > 0.000001f) {
use_z_offset = true;
mat4_get_translation(model_mat, &dist_to_cam);
dist_to_cam = GPM_VAL->cam.view_point - dist_to_cam;
if (rend_group->flags & PARTICLE_EMITTER_LOCAL) {
mat4_normalize_rotation(model_mat, &z_offset_inv_mat);
mat4_invert(&z_offset_inv_mat, &z_offset_inv_mat);
}
}
bool has_scale = false;
bool emitter_local = false;
vec3 scale = 0.0f;
if (rend_group->flags & PARTICLE_EMITTER_LOCAL) {
rend_group->GetEmitterScale(scale);
if (rend_group->flags & PARTICLE_SCALE) {
x_vec.x = scale.x;
y_vec.y = scale.y;
}
if (!(has_scale |= fabsf(scale.x) > 0.000001f ? true : false))
scale.x = 0.0f;
if (!(has_scale |= fabsf(scale.y) > 0.000001f ? true : false))
scale.y = 0.0f;
if (!(has_scale |= fabsf(scale.z) > 0.000001f ? true : false))
scale.z = 0.0f;
emitter_local = true;
}
vec3 ext_anim_scale;
float_t ext_scale = 0.0f;
if (rend_group->GetExtAnimScale(&ext_anim_scale, &ext_scale)) {
if (ext_scale <= 0.0f)
ext_scale = 1.0f;
ext_anim_scale += ext_scale;
x_vec.x *= ext_anim_scale.x;
y_vec.y *= ext_anim_scale.y;
}
if (rend_group->draw_type != DIRECTION_BILLBOARD) {
mat4_transform_vector(dir_mat, &x_vec, &x_vec);
mat4_transform_vector(dir_mat, &y_vec, &y_vec);
}
else
mat4_mul(&inv_model_mat, dir_mat, &inv_model_mat);
mat4_transform_vector(&inv_model_mat, &x_vec, &x_vec);
mat4_transform_vector(&inv_model_mat, &y_vec, &y_vec);
Buffer* buf = (Buffer*)rend_group->vbo.MapMemory();
if (!buf)
return;
RenderElement* elem = rend_group->elements;
vec2 split_uv = rend_group->split_uv;
Pivot pivot = rend_group->pivot;
float_t z_offset = rend_group->z_offset;
size_t disp = 0;
if (rend_group->draw_type == DIRECTION_PARTICLE_ROTATION)
for (size_t i = rend_group->ctrl, j_max = 1024; i > 0; i -= j_max) {
j_max = min_def(i, j_max);
for (size_t j = j_max; j > 0; elem++) {
if (!elem->alive)
continue;
j--;
if (!elem->disp)
continue;
vec2 scale_particle = *(vec2*)&elem->scale * elem->scale_particle * elem->scale_all;
if (fabsf(scale_particle.x) < 0.000001f || fabsf(scale_particle.y) < 0.000001f)
continue;
vec3 pos = elem->translation;
if (has_scale)
pos *= scale;
float_t v00;
float_t v01;
float_t v11;
float_t v10;
CalcDispQuadSetPivot(pivot,
scale_particle.x, scale_particle.y,
v00, v01, v10, v11);
vec2 pos_add[4];
vec2 uv_add[4];
pos_add[0].x = v00;
pos_add[0].y = v11;
uv_add[0].x = 0.0f;
uv_add[0].y = 0.0f;
pos_add[1].x = v00;
pos_add[1].y = v10;
uv_add[1].x = 0.0f;
uv_add[1].y = split_uv.y;
pos_add[2].x = v01;
pos_add[2].y = v10;
uv_add[2].x = split_uv.x;
uv_add[2].y = split_uv.y;
pos_add[3].x = v01;
pos_add[3].y = v11;
uv_add[3].x = split_uv.x;
uv_add[3].y = 0.0f;
vec2 uv = elem->uv + elem->uv_scroll;
if (use_z_offset) {
vec3 z_offset_dir = vec3::normalize(dist_to_cam - pos);
if (emitter_local)
mat4_transform_vector(&z_offset_inv_mat, &z_offset_dir, &z_offset_dir);
pos += z_offset_dir * z_offset;
}
mat3 ptc_rot;
mat3_rotate_zyx(elem->rotation.x, elem->rotation.y, elem->rotation.z, &ptc_rot);
for (int32_t k = 0; k < 4; k++, buf++) {
vec3 xy_vec_rot;
xy_vec_rot.x = x_vec.x * pos_add[k].x;
xy_vec_rot.y = y_vec.y * pos_add[k].y;
xy_vec_rot.z = 0.0f;
mat3_transform_vector(&ptc_rot, &xy_vec_rot, &xy_vec_rot);
buf->position = pos + xy_vec_rot;
buf->uv[0] = uv + uv_add[k];
buf->uv[1] = buf->uv[0];
buf->color = elem->color;
}
disp++;
}
}
else
for (size_t i = rend_group->ctrl, j_max = 1024; i > 0; i -= j_max) {
j_max = min_def(i, j_max);
for (size_t j = j_max; j > 0; elem++) {
if (!elem->alive)
continue;
j--;
if (!elem->disp)
continue;
vec2 scale_particle = *(vec2*)&elem->scale * elem->scale_particle * elem->scale_all;
if (fabsf(scale_particle.x) < 0.000001f || fabsf(scale_particle.y) < 0.000001f)
continue;
vec3 pos = elem->translation;
if (has_scale)
pos *= scale;
float_t v00;
float_t v01;
float_t v11;
float_t v10;
CalcDispQuadSetPivot(pivot,
scale_particle.x, scale_particle.y,
v00, v01, v10, v11);
vec2 pos_add[4];
vec2 uv_add[4];
pos_add[0].x = v00;
pos_add[0].y = v11;
uv_add[0].x = 0.0f;
uv_add[0].y = 0.0f;
pos_add[1].x = v00;
pos_add[1].y = v10;
uv_add[1].x = 0.0f;
uv_add[1].y = split_uv.y;
pos_add[2].x = v01;
pos_add[2].y = v10;
uv_add[2].x = split_uv.x;
uv_add[2].y = split_uv.y;
pos_add[3].x = v01;
pos_add[3].y = v11;
uv_add[3].x = split_uv.x;
uv_add[3].y = 0.0f;
vec2 uv = elem->uv + elem->uv_scroll;
if (use_z_offset) {
vec3 z_offset_dir = vec3::normalize(dist_to_cam - pos);
if (emitter_local)
mat4_transform_vector(&z_offset_inv_mat, &z_offset_dir, &z_offset_dir);
pos += z_offset_dir * z_offset;
}
float_t rot_z_cos = elem->rot_z_cos;
float_t rot_z_sin = elem->rot_z_sin;
for (int32_t k = 0; k < 4; k++, buf++) {
vec3 x_vec_rot = x_vec * (rot_z_cos * pos_add[k].x - rot_z_sin * pos_add[k].y);
vec3 y_vec_rot = y_vec * (rot_z_sin * pos_add[k].x + rot_z_cos * pos_add[k].y);
buf->position = pos + (x_vec_rot + y_vec_rot);
buf->uv[0] = uv + uv_add[k];
buf->uv[1] = buf->uv[0];
buf->color = elem->color;
}
disp++;
}
}
rend_group->disp = disp;
rend_group->vbo.UnmapMemory();
}
bool XRenderScene::CanDisp(DispType disp_type, bool a3) {
for (XRenderGroup*& i : groups)
if (!i->CannotDisp() && i->disp_type == disp_type && (!a3 || !i->HasEnded()))
return true;
return false;
}
void XRenderScene::CheckUseCamera() {
for (XRenderGroup*& i : groups)
if (i)
i->CheckUseCamera();
}
void XRenderScene::Ctrl(float_t delta_frame, bool copy_mats) {
ctrl_quad = 0;
ctrl_line = 0;
ctrl_locus = 0;
ctrl_mesh = 0;
for (XRenderGroup*& i : groups) {
if (!i)
continue;
switch (i->type) {
case PARTICLE_QUAD:
ctrl_quad += i->ctrl;
break;
case PARTICLE_LINE:
ctrl_line += i->ctrl;
break;
case PARTICLE_LOCUS:
ctrl_locus += i->ctrl;
break;
case PARTICLE_MESH:
ctrl_mesh += i->ctrl;
break;
}
i->Ctrl(delta_frame, copy_mats);
}
}
void XRenderScene::Disp(GPM, DispType disp_type) {
Effect* eff = GPM_VAL->selected_effect;
Emitter* emit = GPM_VAL->selected_emitter;
Particle* ptcl = GPM_VAL->selected_particle;
for (XRenderGroup* i : groups) {
if (!i)
continue;
XRenderGroup* rend_group = i;
if ((rend_group)->disp_type != disp_type || rend_group->CannotDisp() && !GPM_VAL->draw_all)
continue;
if (!GPM_VAL->draw_selected || !eff) {
Disp(GPM_VAL, rend_group);
}
else if ((eff && ptcl) || (eff && !emit)) {
if (!ptcl || rend_group->particle->particle == ptcl)
Disp(GPM_VAL, rend_group);
}
else if (emit)
for (Particle*& j : emit->particles) {
if (!j)
continue;
Particle* particle = j;
if (rend_group->particle->particle == particle)
Disp(GPM_VAL, rend_group);
}
}
}
void XRenderScene::Disp(GPM, XRenderGroup* rend_group) {
if (rend_group->disp < 1)
return;
mat4 mat;
mat4_mul(&rend_group->mat_draw, &GPM_VAL->cam.view, &mat);
mat4_mul(&mat, &GPM_VAL->cam.projection, &mat);
float_t emission = 1.0f;
if (rend_group->flags & PARTICLE_EMISSION || rend_group->blend_mode == PARTICLE_BLEND_TYPICAL)
emission = rend_group->emission;
glitter_batch_shader_data shader_data = {};
mat4_transpose(&mat, &mat);
shader_data.g_mvp[0] = mat.row0;
shader_data.g_mvp[1] = mat.row1;
shader_data.g_mvp[2] = mat.row2;
shader_data.g_mvp[3] = mat.row3;
shader_data.g_glitter_blend_color = 1.0f;
shader_data.g_state_material_diffuse = 0.0f;
shader_data.g_state_material_emission = { emission, emission, emission, 1.0f };
rctx_ptr->glitter_batch_ubo.WriteMemory(shader_data);
GLenum blend_src = GL_SRC_ALPHA;
GLenum blend_dst = GL_ONE_MINUS_SRC_ALPHA;
switch (rend_group->blend_mode) {
case PARTICLE_BLEND_ADD:
blend_src = GL_SRC_ALPHA;
blend_dst = GL_ONE;
break;
case PARTICLE_BLEND_MULTIPLY:
blend_src = GL_ZERO;
blend_dst = GL_SRC_COLOR;
break;
}
gl_state_enable_blend();
gl_state_set_blend_func(blend_src, blend_dst);
gl_state_set_blend_equation(GL_FUNC_ADD);
GLuint texture = rctx_ptr->empty_texture_2d->glid;
GLuint mask_texture = rctx_ptr->empty_texture_2d->glid;
if (rend_group->type != PARTICLE_LINE && rend_group->texture) {
texture = rend_group->texture;
if (rend_group->mask_texture) {
mask_texture = rend_group->mask_texture;
uniform_value[U_TEXTURE_COUNT] = 2;
switch (rend_group->mask_blend_mode) {
default:
uniform_value[U_TEXTURE_BLEND] = 0;
break;
case PARTICLE_BLEND_MULTIPLY:
uniform_value[U_TEXTURE_BLEND] = 1;
break;
case PARTICLE_BLEND_ADD:
uniform_value[U_TEXTURE_BLEND] = 2;
break;
}
}
else {
uniform_value[U_TEXTURE_COUNT] = 1;
uniform_value[U_TEXTURE_BLEND] = 0;
}
}
else {
uniform_value[U_TEXTURE_COUNT] = 0;
uniform_value[U_TEXTURE_BLEND] = 0;
}
gl_state_active_bind_texture_2d(0, texture);
gl_state_active_bind_texture_2d(1, mask_texture);
switch (rend_group->fog_type) {
default:
uniform_value[U_FOG_STAGE] = 0;
break;
case Glitter::FOG_DEPTH:
uniform_value[U_FOG_STAGE] = 1;
break;
case Glitter::FOG_HEIGHT:
uniform_value[U_FOG_STAGE] = 2;
break;
}
if (rend_group->blend_mode == PARTICLE_BLEND_PUNCH_THROUGH)
uniform_value[U_ALPHA_BLEND] = rend_group->disp_type ? 3 : 1;
else
uniform_value[U_ALPHA_BLEND] = rend_group->disp_type ? 2 : 0;
if (!(rend_group->flags & PARTICLE_DEPTH_TEST))
gl_state_enable_depth_test();
else
gl_state_disable_depth_test();
if (rend_group->blend_mode == PARTICLE_BLEND_PUNCH_THROUGH)
gl_state_set_depth_mask(GL_TRUE);
else
gl_state_set_depth_mask(GL_FALSE);
if (rend_group->draw_type == DIRECTION_BILLBOARD && !rend_group->use_culling) {
gl_state_enable_cull_face();
gl_state_set_cull_face_mode(GL_BACK);
}
else
gl_state_disable_cull_face();
rctx_ptr->obj_shader.set_shader_flags(uniform_value);
rctx_ptr->obj_shader_ubo.WriteMemory(rctx_ptr->obj_shader);
shaders_ft.set(SHADER_FT_GLITTER_PT);
rctx_ptr->obj_shader_ubo.Bind(0);
rctx_ptr->obj_scene_ubo.Bind(1);
rctx_ptr->glitter_batch_ubo.Bind(3);
switch (rend_group->type) {
case PARTICLE_QUAD:
gl_state_bind_vertex_array(rend_group->vao);
shaders_ft.enable_primitive_restart();
shaders_ft.draw_elements(GL_TRIANGLE_STRIP, (GLsizei)(5 * rend_group->disp - 1), GL_UNSIGNED_INT, 0);
shaders_ft.disable_primitive_restart();
break;
case PARTICLE_LINE:
gl_state_bind_vertex_array(rend_group->vao);
for (std::pair<GLint, GLsizei>& i : rend_group->draw_list)
shaders_ft.draw_arrays(GL_LINE_STRIP, i.first, i.second);
break;
case PARTICLE_LOCUS:
gl_state_bind_vertex_array(rend_group->vao);
for (std::pair<GLint, GLsizei>& i : rend_group->draw_list)
shaders_ft.draw_arrays(GL_TRIANGLE_STRIP, i.first, i.second);
break;
}
}
}
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