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OpenGL2: Don't use initialized arrays in glsl shaders.

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Unsupported in GLSL 1.20 (Mac OS X 10.6)
This commit is contained in:
SmileTheory 2017-07-24 16:29:04 -07:00
parent 67dace6c20
commit 356ae10ef6
3 changed files with 38 additions and 3 deletions
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15
code/renderergl2/glsl/ssao_fp.glsl
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@ -4,6 +4,7 @@ uniform vec4 u_ViewInfo; // zfar / znear, zfar, 1/width, 1/height
varying vec2 var_ScreenTex;
#if 0
vec2 poissonDisc[9] = vec2[9](
vec2(-0.7055767, 0.196515), vec2(0.3524343, -0.7791386),
vec2(0.2391056, 0.9189604), vec2(-0.07580382, -0.09224417),
@ -11,6 +12,8 @@ vec2(0.5784913, -0.002528916), vec2(0.192888, 0.4064181),
vec2(-0.6335801, -0.5247476), vec2(-0.5579782, 0.7491854),
vec2(0.7320465, 0.6317794)
);
#endif
#define NUM_SAMPLES 3
// Input: It uses texture coords as the random number seed.
@ -46,6 +49,18 @@ float getLinearDepth(sampler2D depthMap, const vec2 tex, const float zFarDivZNea
float ambientOcclusion(sampler2D depthMap, const vec2 tex, const float zFarDivZNear, const float zFar, const vec2 scale)
{
vec2 poissonDisc[9];
poissonDisc[0] = vec2(-0.7055767, 0.196515);
poissonDisc[1] = vec2(0.3524343, -0.7791386);
poissonDisc[2] = vec2(0.2391056, 0.9189604);
poissonDisc[3] = vec2(-0.07580382, -0.09224417);
poissonDisc[4] = vec2(0.5784913, -0.002528916);
poissonDisc[5] = vec2(0.192888, 0.4064181);
poissonDisc[6] = vec2(-0.6335801, -0.5247476);
poissonDisc[7] = vec2(-0.5579782, 0.7491854);
poissonDisc[8] = vec2(0.7320465, 0.6317794);
float result = 0;
float sampleZ = getLinearDepth(depthMap, tex, zFarDivZNear);