BRNSystems/minetest
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BRNSystems merged 95 commits from Mirrorlandia_minetest/minetest:master into master 2024-01-28 00:16:42 +01:00
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client/shaders/minimap_shader/opengl_fragment.glsl
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@ -12,13 +12,13 @@ void main (void)
//texture sampling rate
const float step = 1.0 / 256.0;
float tl = texture2D(normalTexture, vec2(uv.x - step, uv.y + step)).r;
float t = texture2D(normalTexture, vec2(uv.x - step, uv.y - step)).r;
float t = texture2D(normalTexture, vec2(uv.x, uv.y + step)).r;
float tr = texture2D(normalTexture, vec2(uv.x + step, uv.y + step)).r;
float r = texture2D(normalTexture, vec2(uv.x + step, uv.y)).r;
float r = texture2D(normalTexture, vec2(uv.x + step, uv.y )).r;
float br = texture2D(normalTexture, vec2(uv.x + step, uv.y - step)).r;
float b = texture2D(normalTexture, vec2(uv.x, uv.y - step)).r;
float b = texture2D(normalTexture, vec2(uv.x, uv.y - step)).r;
float bl = texture2D(normalTexture, vec2(uv.x - step, uv.y - step)).r;
float l = texture2D(normalTexture, vec2(uv.x - step, uv.y)).r;
float l = texture2D(normalTexture, vec2(uv.x - step, uv.y )).r;
float dX = (tr + 2.0 * r + br) - (tl + 2.0 * l + bl);
float dY = (bl + 2.0 * b + br) - (tl + 2.0 * t + tr);
vec4 bump = vec4 (normalize(vec3 (dX, dY, 0.1)),1.0);