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-rw-r--r--assets/shaders/skinned.vert59
1 files changed, 59 insertions, 0 deletions
diff --git a/assets/shaders/skinned.vert b/assets/shaders/skinned.vert
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+++ b/assets/shaders/skinned.vert
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+#version 410 core
+// Inputs
+layout (location = 0) in vec3 inPos;
+layout (location = 1) in vec3 inNormal;
+layout (location = 2) in vec2 inTexCoords;
+layout (location = 3) in ivec4 inBoneIndices;
+layout (location = 4) in vec4 inWeights;
+
+uniform mat4 model;
+uniform mat4 view;
+uniform mat4 projection;
+uniform mat4 lightSpaceMatrix;
+
+const int MAX_BONES = 100;
+const int MAX_BONE_INFLUENCES = 4;
+uniform mat4 boneMatrices[MAX_BONES]; // TODO!
+
+// Output
+out VS_OUT {
+ vec3 FragPos;
+ vec3 Normal;
+ vec2 TexCoords;
+ vec4 FragPosLightSpace;
+ vec4 Color;
+} vs_out;
+
+void main() {
+ // vec4 totalPosition = vec4(0.0f);
+ // for(int i = 0 ; i < MAX_BONE_INFLUENCES ; i++) {
+ // if(inBoneIndices[i] == 0)
+ // continue;
+ // if(inBoneIndices[i] >=MAX_BONES)
+ // {
+ // totalPosition = vec4(inPos,1.0f);
+ // break;
+ // }
+ // vec4 localPosition = finalBoneMatrices[inBoneIndices[i]] * vec4(inPos,1.0f);
+ // totalPosition += localPosition * inWeights[i];
+ // vec3 localNormal = mat3(finalBoneMatrices[inBoneIndices[i]]) * inNormal;
+ // vs_out.Normal = localNormal;
+ // }
+
+
+ mat4 skinMatrix = // mat4(1.0)
+ // boneMatrices[int(inBoneIndices.z)]; // should just be the identtiy
+ inWeights.x * boneMatrices[int(inBoneIndices.x)] +
+ inWeights.y * boneMatrices[int(inBoneIndices.y)] +
+ inWeights.z * boneMatrices[int(inBoneIndices.z)] +
+ inWeights.w * boneMatrices[int(inBoneIndices.w)];
+
+ vec4 totalPosition = skinMatrix * vec4(inPos, 1.0);
+
+ vs_out.FragPos = vec3(model * totalPosition);
+ // vs_out.Normal = inNormal;
+ vs_out.TexCoords = inTexCoords;
+ vs_out.FragPosLightSpace = lightSpaceMatrix * vec4(vs_out.FragPos, 1.0);
+ vs_out.Color = inWeights;
+ gl_Position = projection * view * model * totalPosition;
+} \ No newline at end of file