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Zero out memory from color variable

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According to [here](https://www.khronos.org/opengl/wiki/Type_Qualifier_(GLSL)#Fragment_shader_outputs) memory of a fragment shader variable is initialized with undefined values. Therefore it should be zeroed out.
This commit is contained in:
Felix Weilbach
2020-04-27 16:44:24 +02:00
committed by GitHub
parent be066bcb6e
commit c91f8d65a5
1 changed files with 3 additions and 0 deletions
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src/7.in_practice/3.2d_game/0.full_source/shaders/post_processing.frag
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@@ -13,6 +13,9 @@ uniform bool shake;
void main() void main()
{ {
// zero out memory since an out variable is initialized with undefined values by default
color = vec4(0.0f);
vec3 sample[9]; vec3 sample[9];
// sample from texture offsets if using convolution matrix // sample from texture offsets if using convolution matrix
if(chaos || shake) if(chaos || shake)