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So As objects get further away from me I want to apply a fade. The objects are textured.

I believe the colour of the object is controlled via this line

glVertexAttribPointer(GLKVertexAttribColor, 4, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const GLvoid *) offsetof(Vertex, Color));

Instead of the colour being taken from the Vertex array, is there away to insert a colour in to this?

I have tried setting glColor4 etc and setting 

effect.useConstantColor = YES;
effect.constantColor =  self.color;
genpfault
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Burf2000
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1 Answers1

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Another way to do this is to use fog. Check out the docs for the GLKBaseEffect fog property

Olie
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  • This would probably be easiest; another option is if you're using GLSL is to calculate the eye distance (transpose vertex from model->world->eye) and then darken the vertex color accordingly. – geowar Apr 15 '15 at 22:57