forked from bartvdbraak/blender
Fix T82884: Cycles Compilation Error OpenCL/NanoVDB
Recent changes introduced `acc` parameter into the texture read functions. When nanovdb isn't enabled this leads to compilation errors as the `acc` variable wasn't defined. OpenCL only compiles needed features what made it more prominent. Reviewed By: Patrick Mours Differential Revision: https://developer.blender.org/D9629
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@ -273,6 +273,9 @@ ccl_device float4 kernel_tex_image_interp_3d(KernelGlobals *kg, int id, float3 P
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y *= info->height;
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z *= info->depth;
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}
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# define NANOVDB_ACCESS_POINTER &acc
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#else
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# define NANOVDB_ACCESS_POINTER NULL
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#endif
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if (interpolation == INTERPOLATION_CLOSEST) {
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@ -282,7 +285,7 @@ ccl_device float4 kernel_tex_image_interp_3d(KernelGlobals *kg, int id, float3 P
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svm_image_texture_frac(y, &iy);
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svm_image_texture_frac(z, &iz);
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return svm_image_texture_read_3d(kg, id, &acc, ix, iy, iz);
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return svm_image_texture_read_3d(kg, id, NANOVDB_ACCESS_POINTER, ix, iy, iz);
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}
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else if (interpolation == INTERPOLATION_LINEAR) {
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/* Trilinear interpolation. */
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@ -293,15 +296,22 @@ ccl_device float4 kernel_tex_image_interp_3d(KernelGlobals *kg, int id, float3 P
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float4 r;
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r = (1.0f - tz) * (1.0f - ty) * (1.0f - tx) *
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svm_image_texture_read_3d(kg, id, &acc, ix, iy, iz);
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r += (1.0f - tz) * (1.0f - ty) * tx * svm_image_texture_read_3d(kg, id, &acc, ix + 1, iy, iz);
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r += (1.0f - tz) * ty * (1.0f - tx) * svm_image_texture_read_3d(kg, id, &acc, ix, iy + 1, iz);
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r += (1.0f - tz) * ty * tx * svm_image_texture_read_3d(kg, id, &acc, ix + 1, iy + 1, iz);
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svm_image_texture_read_3d(kg, id, NANOVDB_ACCESS_POINTER, ix, iy, iz);
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r += (1.0f - tz) * (1.0f - ty) * tx *
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svm_image_texture_read_3d(kg, id, NANOVDB_ACCESS_POINTER, ix + 1, iy, iz);
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r += (1.0f - tz) * ty * (1.0f - tx) *
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svm_image_texture_read_3d(kg, id, NANOVDB_ACCESS_POINTER, ix, iy + 1, iz);
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r += (1.0f - tz) * ty * tx *
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svm_image_texture_read_3d(kg, id, NANOVDB_ACCESS_POINTER, ix + 1, iy + 1, iz);
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r += tz * (1.0f - ty) * (1.0f - tx) * svm_image_texture_read_3d(kg, id, &acc, ix, iy, iz + 1);
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r += tz * (1.0f - ty) * tx * svm_image_texture_read_3d(kg, id, &acc, ix + 1, iy, iz + 1);
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r += tz * ty * (1.0f - tx) * svm_image_texture_read_3d(kg, id, &acc, ix, iy + 1, iz + 1);
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r += tz * ty * tx * svm_image_texture_read_3d(kg, id, &acc, ix + 1, iy + 1, iz + 1);
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r += tz * (1.0f - ty) * (1.0f - tx) *
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svm_image_texture_read_3d(kg, id, NANOVDB_ACCESS_POINTER, ix, iy, iz + 1);
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r += tz * (1.0f - ty) * tx *
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svm_image_texture_read_3d(kg, id, NANOVDB_ACCESS_POINTER, ix + 1, iy, iz + 1);
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r += tz * ty * (1.0f - tx) *
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svm_image_texture_read_3d(kg, id, NANOVDB_ACCESS_POINTER, ix, iy + 1, iz + 1);
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r += tz * ty * tx *
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svm_image_texture_read_3d(kg, id, NANOVDB_ACCESS_POINTER, ix + 1, iy + 1, iz + 1);
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return r;
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}
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else {
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@ -322,13 +332,14 @@ ccl_device float4 kernel_tex_image_interp_3d(KernelGlobals *kg, int id, float3 P
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for (int y = 0; y < 4; y++) {
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for (int x = 0; x < 4; x++) {
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float weight = u[x] * v[y] * w[z];
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r += weight *
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svm_image_texture_read_3d(kg, id, &acc, ix + x - 1, iy + y - 1, iz + z - 1);
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r += weight * svm_image_texture_read_3d(
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kg, id, NANOVDB_ACCESS_POINTER, ix + x - 1, iy + y - 1, iz + z - 1);
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}
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}
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}
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return r;
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}
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#undef NANOVDB_ACCESS_POINTER
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}
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#undef SET_CUBIC_SPLINE_WEIGHTS
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