TDA2HG: GLSL sampler2D or samplerCube max count

buaawkp

Expert 1345 points

Part Number: TDA2HG

hello:

I have a question about the max count of sampler2D or samplerCube in frag shader.

I want to achieve the pbr car model, so i need to have some sampler2D or samplerCube in frag shader;

but when the count is 12 which sampler2D and samplerCube ;

shader will link error;

why is this? and how can i do to resolved it?

thanks!

over 4 years ago

0 buaawkp over 4 years ago

Expert 1345 points

glGetShaderInfoLog() return is empty

0 Hemant Hariyani over 4 years ago

TI__Expert 8385 points

Hello,

There is a limit beyond which you cannot go. You can get this by using glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &max_texture units)

Regards

Hemant

0 buaawkp over 4 years ago in reply to Hemant Hariyani

Expert 1345 points

hi Hemant:

thanks for your reply.

the max count is 8, have some method to change the max count? I want to use about 16 texture.

and i also want to use glGenerateMipmap(GL_TEXTURE_CUBE_MAP) and textureCubeLod or texture2DLod in frag shader, but now is alse don't support.

would you have any method to resolved it?

0 Hemant Hariyani over 4 years ago in reply to buaawkp

TI__Expert 8385 points

Hello,

We cannot change the number of max texture image units. You could try and use multiple programs. If you have specific questions about how to use certain features on the graphics hardware, we recommend asking in powervr developer forums:

https://forums.imgtec.com/

Regards

Hemant

Processors

Processors forum

TDA2HG: GLSL sampler2D or samplerCube max count