src/shaders/common.c


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#include "common.h"

Vec3 normal_from_color(Color32 c32) {
	Vec3 normal = {
		c32.r * 2 - 1,
		c32.g * 2 - 1,
		c32.b * 2 - 1,
	};
	return normal;
}

Mat4 mat4(Vec4* c1, Vec4* c2, Vec4* c3, Vec4* c4);

Mat3 mat3(Vec3* c1, Vec3* c2, Vec3* c3) {
	Mat3 m = {
		c1->x,c1->y,c1->z,
		c2->x,c2->y,c2->z,
		c3->x,c3->y,c3->z,
	};
	return m;
}

Vec2 texsize(Texture* texture) {
	Vec2 size = {texture->width, texture->height};
	return size;
}