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gl_rend_state massive overhaul. Created render_data_context

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korenkonder
2025-04-25 20:38:15 +03:00
parent 9cdd9eaf94
commit 452b12e000
71 changed files with 4587 additions and 3541 deletions
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src/KKdLib/mat.cpp
+22
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@@ -1956,6 +1956,19 @@ inline void mat4_ortho(float_t left, float_t right,
out_m->row3.w = 1.0f;
}
inline void mat4_ortho_offset(float_t left, float_t right,
float_t bottom, float_t top, float_t z_near, float_t z_far,
const vec2* scale, const vec2* offset, mat4* out_m) {
*out_m = mat4_null;
out_m->row0.x = 2.0f / (right - left) * scale->x;
out_m->row1.y = 2.0f / (top - bottom) * scale->y;
out_m->row2.z = -2.0f / (z_far - z_near);
out_m->row3.x = -((right + left) / (right - left)) * scale->x + offset->x;
out_m->row3.y = -((top + bottom) / (top - bottom)) * scale->y + offset->y;
out_m->row3.z = -((z_far + z_near) / (z_far - z_near));
out_m->row3.w = 1.0f;
}
inline void mat4_persp(float_t fov_y, float_t aspect, float_t z_near, float_t z_far, mat4* out_m) {
float_t tan_fov = tanf(fov_y * 0.5f);
@@ -1967,6 +1980,15 @@ inline void mat4_persp(float_t fov_y, float_t aspect, float_t z_near, float_t z_
out_m->row3.z = -((2.0f * z_far * z_near) / (z_far - z_near));
}
inline void mat4_persp_offset(float_t fov_y, float_t aspect, float_t z_near, float_t z_far,
const vec2* scale, const vec2* offset, mat4* out_m) {
mat4_persp(fov_y, aspect, z_near, z_far, out_m);
*(vec2*)&out_m->row0.x = *(vec2*)&out_m->row0.x * *scale + out_m->row0.w * *offset;
*(vec2*)&out_m->row1.x = *(vec2*)&out_m->row1.x * *scale + out_m->row1.w * *offset;
*(vec2*)&out_m->row2.x = *(vec2*)&out_m->row2.x * *scale + out_m->row2.w * *offset;
*(vec2*)&out_m->row3.x = *(vec2*)&out_m->row3.x * *scale + out_m->row3.w * *offset;
}
inline void mat4_look_at(const vec3* eye, const vec3* target, const vec3* up, mat4* out_m) {
vec3 x_axis, y_axis, z_axis;
vec3 xyz;