55 lines
1.2 KiB
GLSL
55 lines
1.2 KiB
GLSL
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#version 450 core
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layout (location = 0) in vec3 aPos;
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layout (location = 1) in vec3 aNormal;
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layout (location = 2) in vec2 aTexCoords;
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layout (location = 3) in ivec4 boneIds;
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layout (location = 4) in vec4 weights;
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out vec2 TexCoords;
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out vec3 WorldPos;
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out vec3 Normal;
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uniform mat4 model;
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uniform mat4 view;
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uniform mat4 projection;
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const int MAX_BONES = 100;
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const int MAX_BONE_INFLUENCE = 4;
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layout (std140, binding = 1) uniform FinalBonesMatrices
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{
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mat4 finalBonesMatrices[MAX_BONES];
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};
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void main()
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{
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vec4 totalPosition = vec4(0.0f);
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vec3 totalNormal = vec3(0);
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int boneCount = 0;
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for(int i = 0 ; i < MAX_BONE_INFLUENCE ; i++)
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{
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if(boneIds[i] == -1)
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continue;
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if(boneIds[i] >= MAX_BONES)
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{
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totalPosition = vec4(aPos,1.0f);
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break;
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}
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boneCount++;
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vec4 localPosition = finalBonesMatrices[boneIds[i]] * vec4(aPos,1.0f);
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totalPosition += localPosition * weights[i];
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vec3 localNormal = mat3(finalBonesMatrices[boneIds[i]]) * aNormal;
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totalNormal += localNormal * weights[i];
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}
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if(boneCount == 0)
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{
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totalPosition = vec4(aPos, 1);
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totalNormal = vec3(aNormal);
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}
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TexCoords = aTexCoords;
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WorldPos = vec3(model * totalPosition);
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Normal = mat3(model) * totalNormal;
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gl_Position = projection * view * vec4(WorldPos, 1.0);
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}
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