d723b0b518
Use Uniform Arrays instead of Texture1D. Use ambient/diffuse/specular/shininess material properties consistently across all WS30 shaders. Use consistent shading model for photoscenery vs. landclass to minimize visual difference.
67 lines
1.9 KiB
GLSL
67 lines
1.9 KiB
GLSL
#version 330 core
|
|
|
|
layout(location = 0) out vec4 outGBuffer0;
|
|
layout(location = 1) out vec4 outGBuffer1;
|
|
layout(location = 2) out vec4 outGBuffer2;
|
|
|
|
in vec3 normalVS;
|
|
in vec2 texCoord;
|
|
|
|
uniform sampler2D landclass;
|
|
uniform sampler2DArray atlas;
|
|
uniform sampler2D perlin;
|
|
|
|
// Passed from VPBTechnique, not the Effect
|
|
uniform float tile_width;
|
|
uniform float tile_height;
|
|
uniform vec4 dimensionsArray[128];
|
|
uniform vec4 ambientArray[128];
|
|
uniform vec4 diffuseArray[128];
|
|
uniform vec4 specularArray[128];
|
|
|
|
|
|
vec2 encodeNormal(vec3 n);
|
|
vec3 decodeSRGB(vec3 screenRGB);
|
|
|
|
void main()
|
|
{
|
|
vec3 texel;
|
|
|
|
if (photoScenery) {
|
|
texel = decodeSRGB(texture(landclass, vec2(gl_TexCoord[0].s, 1.0 - gl_TexCoord[0].t)).rgb);
|
|
} else {
|
|
|
|
// The Landclass for this particular fragment. This can be used to
|
|
// index into the atlas textures.
|
|
int lc = int(texture2D(landclass, gl_TexCoord[0].st).g * 255.0 + 0.5);
|
|
|
|
color = ambientArray[lc] + diffuseArray[lc] * NdotL * gl_LightSource[0].diffuse;
|
|
specular = specularArray[lc];
|
|
|
|
// Different textures have different have different dimensions.
|
|
vec2 atlas_dimensions = dimensionsArray[lc].st;
|
|
vec2 atlas_scale = vec2(tile_width / atlas_dimensions.s, tile_height / atlas_dimensions.t );
|
|
vec2 st = atlas_scale * gl_TexCoord[0].st;
|
|
|
|
// Rotate texture using the perlin texture as a mask to reduce tiling
|
|
if (step(0.5, texture(perlin, atlas_scale * gl_TexCoord[0].st / 8.0).r) == 1.0) {
|
|
st = vec2(atlas_scale.s * gl_TexCoord[0].t, atlas_scale.t * gl_TexCoord[0].s);
|
|
}
|
|
|
|
if (step(0.5, texture(perlin, - atlas_scale * gl_TexCoord[0].st / 16.0).r) == 1.0) {
|
|
st = -st;
|
|
}
|
|
|
|
texel = decodeSRGB(texture(atlas, vec3(st, lc)).rgb);
|
|
}
|
|
|
|
float specularity = clamp(dot(specular.rgb, vec3(0.333)), 0.0, 1.0);
|
|
|
|
outGBuffer0.rg = encodeNormal(normalVS);
|
|
outGBuffer0.b = 1.0 - specularity;
|
|
outGBuffer0.a = 1.0;
|
|
outGBuffer1.rgb = texel;
|
|
outGBuffer1.a = 0.0;
|
|
outGBuffer2.rgb = vec3(0.0);
|
|
outGBuffer2.a = 1.0;
|
|
}
|