50 lines
1.4 KiB
GLSL
50 lines
1.4 KiB
GLSL
#version 450
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#extension GL_ARB_separate_shader_objects : enable
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layout(push_constant) uniform PushConstants {
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mat4 model;
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} push;
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layout(binding = 0) uniform ObjectUniformData {
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mat4 view;
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mat4 projection;
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float time;
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vec3 light_position;
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vec3 camera_position;
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} ubo;
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layout(location = 0) in vec3 position;
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layout(location = 1) in vec2 uv;
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layout(location = 2) in vec3 normal;
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layout(location = 3) in vec4 tangent;
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layout(location = 4) in ivec4 bone_index;
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layout(location = 5) in vec4 bone_weight;
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layout(location = 0) out vec2 tex_coords;
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layout(location = 1) out vec3 normal_wld;
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layout(location = 2) out vec3 position_wld;
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layout(location = 3) out mat3 tbn;
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out gl_PerVertex {
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vec4 gl_Position;
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};
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void main() {
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// Vertex position
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gl_Position = ubo.projection * ubo.view * push.model * vec4(position, 1.0);
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position_wld = vec3(push.model * vec4(position, 1.0));
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// Just interpolate UV coords, no transformation needed
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tex_coords = uv;
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// This should probably be in object space? idk
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normal_wld = vec3(mat3(transpose(inverse(push.model))) * normal);
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// Tangent->object space matrix
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vec3 tangent3 = vec3(tangent.xy, 1.0);
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vec3 bitangent = -cross(tangent3, normal_wld);
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vec3 t = normalize(vec3(push.model * vec4(tangent3, 0.0)));
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vec3 b = normalize(vec3(push.model * vec4(bitangent, 0.0)));
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vec3 n = normalize(vec3(push.model * vec4(normal_wld, 0.0)));
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tbn = mat3(t, b, n);
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} |