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Add shader loading functionality

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This commit is contained in:
Linnea Gräf
2024-09-07 14:44:43 +02:00
parent 9cdc30e024
commit 26461deda4
8 changed files with 182 additions and 2 deletions
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18
src/main/resources/assets/minecraft/shaders/core/firmament_rendertype_lines.fsh Normal file
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#version 150
#moj_import <fog.glsl>
uniform vec4 ColorModulator;
uniform float FogStart;
uniform float FogEnd;
uniform vec4 FogColor;
in float vertexDistance;
in vec4 vertexColor;
out vec4 fragColor;
void main() {
vec4 color = vertexColor * ColorModulator;
fragColor = linear_fog(color, vertexDistance, FogStart, FogEnd, FogColor);
}

17
src/main/resources/assets/minecraft/shaders/core/firmament_rendertype_lines.json Normal file
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{
"vertex": "firmament_rendertype_lines",
"fragment": "firmament_rendertype_lines",
"samplers": [
],
"uniforms": [
{ "name": "ModelViewMat", "type": "matrix4x4", "count": 16, "values": [ 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0 ] },
{ "name": "ProjMat", "type": "matrix4x4", "count": 16, "values": [ 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0 ] },
{ "name": "ColorModulator", "type": "float", "count": 4, "values": [ 1.0, 1.0, 1.0, 1.0 ] },
{ "name": "LineWidth", "type": "float", "count": 1, "values": [ 1.0 ] },
{ "name": "ScreenSize", "type": "float", "count": 2, "values": [ 1.0, 1.0 ] },
{ "name": "FogStart", "type": "float", "count": 1, "values": [ 0.0 ] },
{ "name": "FogEnd", "type": "float", "count": 1, "values": [ 1.0 ] },
{ "name": "FogColor", "type": "float", "count": 4, "values": [ 0.0, 0.0, 0.0, 0.0 ] },
{ "name": "FogShape", "type": "int", "count": 1, "values": [ 0 ] }
]
}

62
src/main/resources/assets/minecraft/shaders/core/firmament_rendertype_lines.vsh Normal file
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#version 150
#moj_import <fog.glsl>
in vec3 Position;
in vec4 Color;
in vec3 Normal;
uniform mat4 ModelViewMat;
uniform mat4 ProjMat;
uniform float LineWidth;
uniform vec2 ScreenSize;
uniform int FogShape;
out float vertexDistance;
out vec4 vertexColor;
const float VIEW_SHRINK = 1.0 - (1.0 / 256.0);
const mat4 VIEW_SCALE = mat4(
VIEW_SHRINK, 0.0, 0.0, 0.0,
0.0, VIEW_SHRINK, 0.0, 0.0,
0.0, 0.0, VIEW_SHRINK, 0.0,
0.0, 0.0, 0.0, 1.0
);
void main() {
vec4 linePosStart = ProjMat * VIEW_SCALE * ModelViewMat * vec4(Position, 1.0);
vec4 linePosEnd = ProjMat * VIEW_SCALE * ModelViewMat * vec4(Position + Normal, 1.0);
vec3 ndc1 = linePosStart.xyz / linePosStart.w;
vec3 ndc2 = linePosEnd.xyz / linePosEnd.w;
bool linePosStartBehind = ndc1.z <= -1;
bool linePosEndBehind = ndc2.z <= -1;
if ((linePosStartBehind && linePosEndBehind)) {
gl_Position = vec4(-2.0, -2.0, -2.0, 1.0);
return; // I don't care for these people
}
if (linePosStartBehind || linePosEndBehind) {
ndc1.z = 0.0;
ndc2.z = 0.0;
linePosStart.w = 1.0;
// TODO: use mx + b to find move the two coordinates around to extend lines
}
vec2 lineScreenDirection = normalize((ndc2.xy - ndc1.xy) * ScreenSize);
vec2 lineOffset = vec2(-lineScreenDirection.y, lineScreenDirection.x) * LineWidth / ScreenSize;
if (lineOffset.x < 0.0) {
lineOffset *= -1.0;
}
if (gl_VertexID % 2 == 0) {
gl_Position = vec4((ndc1 + vec3(lineOffset, 0.0)) * linePosStart.w, linePosStart.w);
} else {
gl_Position = vec4((ndc1 - vec3(lineOffset, 0.0)) * linePosStart.w, linePosStart.w);
}
vertexDistance = fog_distance(Position, FogShape);
vertexColor = Color;
}