blob: 0be6bda45998562945564dad28880c812ec3137d [file] [log] [blame]
#version 450 core
#extension GL_ARB_shader_draw_parameters : require
layout(location = 0) in vec4 in_position;
layout(location = 1) in vec4 in_color;
layout(location = 2) in int in_refVertexIndex;
layout(location = 0) out vec4 out_color;
out gl_PerVertex {
vec4 gl_Position;
};
void main() {
vec2 perVertex = vec2(in_position.x, in_position.y);
vec2 perInstance[5] = vec2[5](vec2(0.0, 0.0), vec2(-0.3, 0.0), vec2(0.0, 0.3), vec2(0.5, 0.5), vec2(0.75, -0.8));
vec4 colors[4] = vec4[4](vec4(1.0), vec4(0.0, 0.0, 1.0, 1.0), vec4(0.0, 1.0, 0.0, 1.0), vec4(0.0, 1.0, 1.0, 1.0));
int baseInstanceIndex = gl_InstanceIndex - gl_BaseInstanceARB;
gl_Position = vec4(perVertex + perInstance[baseInstanceIndex], 0.0, 1.0);
if ((gl_VertexIndex - gl_BaseVertexARB) == in_refVertexIndex && gl_DrawIDARB == 0)
out_color = in_color * colors[baseInstanceIndex];
else
out_color = vec4(1.0, 0.0, 0.0, 1.0);
}