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- fixed the shader.

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This commit is contained in:
Christoph Oelckers 2019-09-20 15:02:49 +02:00
parent f6993940e5
commit a55e19ed83
1 changed files with 2 additions and 7 deletions
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9
source/build/src/polymost1Frag.glsl
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@ -1,5 +1,4 @@
#version 110
#extension ARB_shader_texture_lod : enable
//include an additional space here so that we can programmatically search for and disable this preprocessor definition easily
#define POLYMOST1_EXTENDED
@ -33,6 +32,7 @@ uniform float u_npotEmulation;
uniform float u_npotEmulationFactor;
uniform float u_npotEmulationXOffset;
uniform float u_shadeInterpolate;
uniform float u_brightness;
#ifdef POLYMOST1_EXTENDED
uniform float u_useDetailMapping;
@ -59,17 +59,11 @@ void main()
coordX += u_npotEmulationXOffset*floor(mod(coordY,u_npotEmulationFactor));
coordY = period+mod(coordY,u_npotEmulationFactor);
vec2 newCoord = mix(gl_TexCoord[0].xy,mix(vec2(coordX,coordY),vec2(coordY,coordX),u_usePalette),u_npotEmulation);
#ifdef GL_ARB_shader_texture_lod
vec2 texCoord = fract(newCoord.xy);
texCoord = clamp(u_texturePosSize.zw*texCoord, u_halfTexelSize, u_texturePosSize.zw-u_halfTexelSize);
vec4 color = texture2DGradARB(s_texture, u_texturePosSize.xy+texCoord, dFdx(texCoord), dFdy(texCoord));
#else
vec2 transitionBlend = fwidth(floor(newCoord.xy));
transitionBlend = fwidth(transitionBlend)+transitionBlend;
vec2 texCoord = mix(fract(newCoord.xy), abs(c_one-mod(newCoord.xy+c_one, c_two)), transitionBlend);
texCoord = clamp(u_texturePosSize.zw*texCoord, u_halfTexelSize, u_texturePosSize.zw-u_halfTexelSize);
vec4 color = texture2D(s_texture, u_texturePosSize.xy+texCoord);
#endif
float shade = clamp((u_shade+max(u_visFactor*v_distance-0.5*u_shadeInterpolate,c_zero)), c_zero, u_numShades-c_one);
float shadeFrac = mod(shade, c_one);
@ -111,6 +105,7 @@ void main()
#endif
color.a *= v_color.a;
color.rgb = pow(color.rgb, vec3(u_brightness));
gl_FragData[0] = color;
}