49 lines
1.7 KiB
Common Lisp
49 lines
1.7 KiB
Common Lisp
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__kernel void blend(
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__global float* in_base_vertices,
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__global float* in_base_normals,
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__global float* in_blendshape_vertices,
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__global float* in_blendshape_normals,
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__global unsigned int* in_weight_indices,
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__global float* in_weights,
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unsigned int num_vertices,
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unsigned int num_indices,
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__global float* out_vertices,
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__global float* out_normals)
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{
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size_t tid = get_global_id(0);
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if (tid >= num_vertices)
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return;
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size_t i;
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float3 vtx;
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float3 nrm;
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vtx = 0.0f;
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nrm = (float3)(in_base_normals[tid*3+0], in_base_normals[tid*3+1], in_base_normals[tid*3+2]);
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for (i=0; i < num_indices; ++i)
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{
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vtx.x += in_weights[i] * in_blendshape_vertices[in_weight_indices[i] * num_vertices*3 + tid*3 + 0];
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vtx.y += in_weights[i] * in_blendshape_vertices[in_weight_indices[i] * num_vertices*3 + tid*3 + 1];
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vtx.z += in_weights[i] * in_blendshape_vertices[in_weight_indices[i] * num_vertices*3 + tid*3 + 2];
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nrm.x += in_weights[i] * in_blendshape_normals[in_weight_indices[i] * num_vertices*3 + tid*3 + 0];
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nrm.y += in_weights[i] * in_blendshape_normals[in_weight_indices[i] * num_vertices*3 + tid*3 + 1];
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nrm.z += in_weights[i] * in_blendshape_normals[in_weight_indices[i] * num_vertices*3 + tid*3 + 2];
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}
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nrm = normalize(nrm);
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out_vertices[tid*3+0] = in_base_vertices[tid*3+0] + vtx.x;
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out_vertices[tid*3+1] = in_base_vertices[tid*3+1] + vtx.y;
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out_vertices[tid*3+2] = in_base_vertices[tid*3+2] + vtx.z;
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out_normals[tid*3+0] = nrm.x;
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out_normals[tid*3+1] = nrm.y;
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out_normals[tid*3+2] = nrm.z;
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}
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