simple_shader.vert

#version 450

layout (location = 0) in vec3 position;
layout (location = 1) in vec3 color;
layout (location = 2) in vec3 normal;
layout (location = 3) in vec2 uv;

layout (location = 0) out vec3 fragColor;
layout (location = 1) out vec3 fragPosWorld;
layout (location = 2) out vec3 fragNormalWorld;
layout (location = 3) out vec2 fragUV;

struct PointLight {
  vec4 position; // ignore w
  vec4 color; // w = intensity
};

layout (set = 0, binding = 0) uniform GlobalUbo {
  mat4 projection;
  mat4 view;
  mat4 inverseView;
  vec4 ambientLightColor;
  PointLight pointLights[10];
  int numLights;
} ubo;

layout(push_constant) uniform Push {
  mat4 modelMatrix;
  mat4 normalMatrix;
} push;

void main() {
  vec4 positionWorld = push.modelMatrix * vec4(position, 1.0);
  gl_Position = ubo.projection * ubo.view * positionWorld;
  
  fragNormalWorld = normalize(mat3(push.normalMatrix) * normal);
  fragPosWorld = positionWorld.xyz;
  fragColor = color;
  fragUV = uv;
}