AuroraMiddleware/SPIRV-Cross
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SPIRV-Cross/shaders/flatten/matrixindex.flatten.vert

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Implement flattening of row major matrix indexing To extract a column from row-major matrix, we need to do a strided load one component at a time. In this case flattened_access_chain_offset still returns the offset to the first element, but the stride is equal to matrix stride instead of vector stride. For this to work, we need to pass matrix stride (and transpose flag) through, similar to how matrix flattening works. Additionally slightly clean up recursive flattened_access_chain structure - specifically, instead of deciding mid-traversal that we need matrix stride information, we can just pass the matrix stride through - for access chains that end in matrix/vector this gets us what we need, and for access chains that end in structs the flattened_access_chain_struct code will recompute correct stride/transposition data to pass through further.
2017-01-24 15:42:19 +00:00
#version 310 es
layout(std140) uniform UBO
{
layout(column_major) mat4 M1C;
layout(row_major) mat4 M1R;
layout(column_major) mat2x4 M2C;
layout(row_major) mat2x4 M2R;
};
Add explicit in/out locations everywhere. Needed for newer glslang. With Vulkan semantics for SPIR-V, all locations must be explicitly defined.
2017-06-21 07:39:08 +00:00
layout(location = 0) out vec4 oA;
layout(location = 1) out vec4 oB;
layout(location = 2) out vec4 oC;
layout(location = 3) out vec4 oD;
layout(location = 4) out vec4 oE;
Implement flattening of row major matrix indexing To extract a column from row-major matrix, we need to do a strided load one component at a time. In this case flattened_access_chain_offset still returns the offset to the first element, but the stride is equal to matrix stride instead of vector stride. For this to work, we need to pass matrix stride (and transpose flag) through, similar to how matrix flattening works. Additionally slightly clean up recursive flattened_access_chain structure - specifically, instead of deciding mid-traversal that we need matrix stride information, we can just pass the matrix stride through - for access chains that end in matrix/vector this gets us what we need, and for access chains that end in structs the flattened_access_chain_struct code will recompute correct stride/transposition data to pass through further.
2017-01-24 15:42:19 +00:00
void main()
{
gl_Position = vec4(0.0);
oA = M1C[1];
oB = M1R[1];
oC = M2C[1];
oD = M2R[0];
oE = vec4(M1C[1][2], M1R[1][2], M2C[1][2], M2R[1][2]);
}
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