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#extension GL_ARB_gpu_shader5 support the implicit conversion ,

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So the best function matching algorithm should be actived.


Signed-off-by: ZhiqianXia <xzq0528@outlook.com>
This commit is contained in:
ZhiqianXia 2021-08-02 16:41:21 +08:00
parent bb5b357550
commit 77b0d72c68
4 changed files with 231 additions and 2 deletions
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Test/BestMatchFunction.vert Normal file
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#version 150
#extension GL_ARB_gpu_shader5 : require
uniform ivec4 u1;
uniform uvec4 u2;
out vec4 result;
vec4 f(in vec4 a, in vec4 b){ return a * b;} // choice 1
vec4 f(in uvec4 a, in uvec4 b){ return vec4(a - b);} // choice 2
void main()
{
result = f(u1, u2); // should match choice 2. which have less implicit conversion.
switch (gl_VertexID)
{
case 0: gl_Position = vec4(-1.0, 1.0, 0.0, 1.0); break;
case 1: gl_Position = vec4( 1.0, 1.0, 0.0, 1.0); break;
case 2: gl_Position = vec4(-1.0,-1.0, 0.0, 1.0); break;
case 3: gl_Position = vec4( 1.0,-1.0, 0.0, 1.0); break;
}
}