48 lines
1.2 KiB
GLSL
48 lines
1.2 KiB
GLSL
#version 330 core
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uniform mat4 u_mvp;
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uniform mat4 u_mv;
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layout (location = 0) in vec3 position;
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layout (location = 1) in vec3 normal;
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layout (location = 2) in vec2 texcoord;
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layout (location = 3) in vec3 tangent;
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layout (location = 4) in vec3 bitangent;
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layout (location = 5) in uvec4 bone_ids; // Skinning (experimental)
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layout (location = 6) in vec4 weights;
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out vec3 v_position;
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out vec3 v_normal;
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out vec3 v_proj_normal;
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out vec2 v_texcoord;
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out vec3 v_tangent;
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out vec3 v_bitangent;
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out float v_id;
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const int MAX_BONES = 96;
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uniform mat4 u_bones[MAX_BONES];
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uniform int u_has_bones;
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void main()
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{
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v_position = position;
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v_proj_normal = vec4(u_mv * vec4(normal, 1.0)).xyz;
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v_normal = normal;
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v_texcoord = vec2(texcoord.x, -texcoord.y);
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v_tangent = tangent;
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v_bitangent = bitangent;
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v_id = gl_VertexID;
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if (u_has_bones == 1) {
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mat4 bone_transform = u_bones[bone_ids[0]] * weights[0];
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bone_transform += u_bones[bone_ids[1]] * weights[1];
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bone_transform += u_bones[bone_ids[2]] * weights[2];
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bone_transform += u_bones[bone_ids[3]] * weights[3];
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gl_Position = u_mvp * (bone_transform * vec4(v_position, 1.0));
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return;
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}
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gl_Position = u_mvp * vec4(v_position, 1.0);
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}
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