Changed descriptor type for compute shader image read, updated shaders

data/shaders/computeshader/edgedetect.comp

@@ -4,7 +4,7 @@
 #extension GL_ARB_shading_language_420pack : enable
 
 layout (local_size_x = 16, local_size_y = 16) in;
-layout (binding = 0, rgba8) uniform image2D inputImage;
+layout (binding = 0, rgba8) uniform readonly image2D inputImage;
 layout (binding = 1, rgba8) uniform image2D resultImage;
 
 float conv(in float[9] kernel, in float[9] data, in float denom, in float offset) 

data/shaders/computeshader/emboss.comp

@@ -3,8 +3,8 @@
 #extension GL_ARB_separate_shader_objects : enable
 #extension GL_ARB_shading_language_420pack : enable
 
-layout (local_size_x =16, local_size_y = 16) in;
-layout (binding = 0, rgba8) uniform image2D inputImage;
+layout (local_size_x = 16, local_size_y = 16) in;
+layout (binding = 0, rgba8) uniform readonly image2D inputImage;
 layout (binding = 1, rgba8) uniform image2D resultImage;
 
 float conv(in float[9] kernel, in float[9] data, in float denom, in float offset) 

data/shaders/computeshader/sharpen.comp

@@ -3,8 +3,8 @@
 #extension GL_ARB_separate_shader_objects : enable
 #extension GL_ARB_shading_language_420pack : enable
 
-layout (local_size_x =16, local_size_y = 16) in;
-layout (binding = 0, rgba8) uniform image2D inputImage;
+layout (local_size_x = 16, local_size_y = 16) in;
+layout (binding = 0, rgba8) uniform readonly image2D inputImage;
 layout (binding = 1, rgba8) uniform image2D resultImage;
 
 float conv(in float[9] kernel, in float[9] data, in float denom, in float offset) 

data/shaders/computeshader/texture.vert

@@ -14,6 +14,11 @@ layout (binding = 0) uniform UBO
 
 layout (location = 0) out vec2 outUV;
 
+out gl_PerVertex
+{
+	vec4 gl_Position;
+};
+
 void main() 
 {
 	outUV = inUV;