6f6e638f2f
Implement register and vertex-shader-written point size. Fix point size computation in geometry shader (convert pixel size to NDC scale using viewport size). Fix point sprite coordinate generation.
61 lines
1.6 KiB
GLSL
61 lines
1.6 KiB
GLSL
// NOTE: This file is compiled and embedded into the exe.
|
|
// Use `xenia-build genspirv` and check in any changes under bin/.
|
|
|
|
#version 450 core
|
|
#extension all : warn
|
|
|
|
layout(push_constant) uniform push_consts_type {
|
|
vec4 window_scale;
|
|
vec4 vtx_fmt;
|
|
vec4 point_size;
|
|
vec4 alpha_test;
|
|
uint ps_param_gen;
|
|
} push_constants;
|
|
|
|
in gl_PerVertex {
|
|
vec4 gl_Position;
|
|
// float gl_ClipDistance[];
|
|
} gl_in[];
|
|
|
|
out gl_PerVertex {
|
|
vec4 gl_Position;
|
|
// float gl_ClipDistance[];
|
|
};
|
|
|
|
layout(location = 0) in vec4 in_interpolators[][16];
|
|
layout(location = 16) in vec2 in_point_coord_unused[];
|
|
layout(location = 17) in float point_size[];
|
|
|
|
layout(location = 0) out vec4 out_interpolators[16];
|
|
layout(location = 16) out vec2 point_coord;
|
|
|
|
// TODO(benvanik): clamp to min/max.
|
|
// TODO(benvanik): figure out how to see which interpolator gets adjusted.
|
|
|
|
layout(points) in;
|
|
layout(triangle_strip, max_vertices = 4) out;
|
|
|
|
void main() {
|
|
const vec2 offsets[4] = {
|
|
vec2(-1.0, 1.0),
|
|
vec2( 1.0, 1.0),
|
|
vec2(-1.0, -1.0),
|
|
vec2( 1.0, -1.0),
|
|
};
|
|
vec4 pos = gl_in[0].gl_Position;
|
|
vec2 window_scaled_psize = push_constants.point_size.xy;
|
|
// Shader header writes -1.0f to pointSize by default, so any positive value
|
|
// means that it was overwritten by the translated vertex shader.
|
|
if (point_size[0] > 0.0f) {
|
|
window_scaled_psize = vec2(point_size[0]);
|
|
}
|
|
window_scaled_psize /= push_constants.window_scale.zw;
|
|
for (int i = 0; i < 4; ++i) {
|
|
gl_Position = vec4(pos.xy + (offsets[i] * window_scaled_psize), pos.zw);
|
|
out_interpolators = in_interpolators[0];
|
|
point_coord = max(offsets[i], vec2(0.0f));
|
|
EmitVertex();
|
|
}
|
|
EndPrimitive();
|
|
}
|