SPIRV-Cross/reference/shaders/asm/vert/uint-vertex-id-instance-id.asm.vert
Hans-Kristian Arntzen ef247e75ec GLSL: Improve support for GL_ARB_shader_draw_parameters in desktop GLSL.
Opt-in to using the extension to support gl_InstanceIndex.
2020-05-22 12:53:34 +02:00

26 lines
523 B
GLSL

#version 450
#ifdef GL_ARB_shader_draw_parameters
#extension GL_ARB_shader_draw_parameters : enable
#endif
#ifdef GL_ARB_shader_draw_parameters
#define SPIRV_Cross_BaseInstance gl_BaseInstanceARB
#else
uniform int SPIRV_Cross_BaseInstance;
#endif
vec4 _main(uint vid, uint iid)
{
return vec4(float(vid + iid));
}
void main()
{
uint vid = uint(gl_VertexID);
uint iid = uint((gl_InstanceID + SPIRV_Cross_BaseInstance));
uint param = vid;
uint param_1 = iid;
gl_Position = _main(param, param_1);
}