mirror of https://github.com/OpenRCT2/OpenRCT2.git
30 lines
616 B
GLSL
30 lines
616 B
GLSL
#version 150
|
|
|
|
// Allows for about 8 million draws per frame
|
|
const float DEPTH_INCREMENT = 1.0 / float(1u << 22u);
|
|
|
|
uniform ivec2 uScreenSize;
|
|
|
|
in ivec4 vBounds;
|
|
in ivec4 vClip;
|
|
in uint vColour;
|
|
in int vDepth;
|
|
|
|
in mat4x2 vVertMat;
|
|
|
|
flat out uint fColour;
|
|
|
|
void main()
|
|
{
|
|
vec2 pos = clamp(vVertMat * vec4(vBounds), vec2(vClip.xy), vec2(vClip.zw));
|
|
|
|
// Transform screen coordinates to viewport coordinates
|
|
pos = (pos * (2.0 / vec2(uScreenSize))) - 1.0;
|
|
pos.y *= -1.0;
|
|
float depth = 1.0 - (float(vDepth) + 1.0) * DEPTH_INCREMENT;
|
|
|
|
fColour = vColour;
|
|
|
|
gl_Position = vec4(pos, depth, 1.0);
|
|
}
|