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Implement a global shader parameter passing system and useful shaders

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This commit is contained in:
Perttu Ahola 2012-12-01 03:02:16 +02:00
parent 22e6fb7056
commit 27373919f4
15 changed files with 241 additions and 90 deletions
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1
client/shaders/test_shader_1/base.txt Normal file
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trans_alphach_ref

25
client/shaders/test_shader_1/opengl_fragment.glsl Normal file
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uniform sampler2D myTexture;
uniform vec4 skyBgColor;
uniform float fogDistance;
varying vec3 vPosition;
void main (void)
{
//vec4 col = vec4(1.0, 0.0, 0.0, 1.0);
vec4 col = texture2D(myTexture, vec2(gl_TexCoord[0]));
float a = col.a;
col *= gl_Color;
col = col * col; // SRGB -> Linear
col *= 1.8;
col.r = 1.0 - exp(1.0 - col.r) / exp(1.0);
col.g = 1.0 - exp(1.0 - col.g) / exp(1.0);
col.b = 1.0 - exp(1.0 - col.b) / exp(1.0);
col = sqrt(col); // Linear -> SRGB
if(fogDistance != 0.0){
float d = max(0.0, min(vPosition.z / fogDistance * 1.5 - 0.6, 1.0));
col = mix(col, skyBgColor, d);
}
gl_FragColor = vec4(col.r, col.g, col.b, a);
}

25
client/shaders/test_shader_1/opengl_vertex.glsl Normal file
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uniform mat4 mWorldViewProj;
uniform mat4 mInvWorld;
uniform mat4 mTransWorld;
varying vec3 vPosition;
void main(void)
{
gl_Position = mWorldViewProj * gl_Vertex;
vPosition = (mWorldViewProj * gl_Vertex).xyz;
if(gl_Normal.y > 0.5)
gl_FrontColor = gl_BackColor = gl_Color;
else
gl_FrontColor = gl_BackColor = gl_Color * 0.7;
/*if(gl_Normal.y > 0.5)
gl_FrontColor = gl_BackColor = vec4(1.0, 1.0, 1.0, 1.0);
else
gl_FrontColor = gl_BackColor = vec4(1.0, 1.0, 1.0, 1.0) * 0.7;*/
gl_TexCoord[0] = gl_MultiTexCoord0;
}