Shader Question: adding TEXCOORDs

developer forums

Dark GDK / Shader Question: adding TEXCOORDs

Author

Message

Crasher

Years of Service

User Offline

Joined: 30th May 2012

Location:

Posted: 5th Jun 2012 04:33

Link

Hello all,
I downloaded the ultimate shader pack and am playing with some shaders, namely Evolved's normal mapping. I am modifying it take cube mapping as well and have encountered my first hurdle: when the output structure is modified from this:

+ Code Snippet

struct output
     {
	float4 OPos:POSITION; 
 	float2 Tex:TEXCOORD0; 
  	float3 LightVec:TEXCOORD1; 
	float3 Attenuation:TEXCOORD2;
	float3 ViewVec:TEXCOORD3;	
	float Fog:FOG;
     };

to this

+ Code Snippet

struct output
     {
	float4 OPos:POSITION; 
 	float2 Tex:TEXCOORD0; 
  	float3 LightVec:TEXCOORD1; 
	float3 Attenuation:TEXCOORD2;
	float3 ViewVec:TEXCOORD3;
	float3 Ref:TEXCOORD4;	
	float Fog:FOG;
     };

The GDK seems to throw up and simply not render the object. Note, the unmodifed code works perfectly so its not my implementation. Things I have tried: switching to the October 2010 update and changing the shader versions from

+ Code Snippet

vertexShader = compile vs_1_1 VS(); 
 	pixelShader  = compile ps_1_4 PS();

+ Code Snippet

vertexShader = compile vs_2_0 VS(); 
 	pixelShader  = compile ps_2_0 PS();

Profile PM

Morcilla

Years of Service

User Offline

Joined: 1st Dec 2002

Location: Spain

Posted: 9th Jun 2012 11:24

Link

It should be working.
Full code is needed to test, maybe you can post it.

Profile PM Email Website

Crasher

Years of Service

User Offline

Joined: 30th May 2012

Location:

Posted: 11th Jun 2012 11:05

Link

Its working now. Apparently there is a limited number of texcoords you can have in the output and I exceeded that limit for that pass. To work around it I added another pass and made a new output structure with my new texcoords. Using this I have a normal mapping on the first pass and cube mapping on the second pass, combining the two effects.

Profile PM

Server time is: 2024-11-19 00:51:09
Your offset time is: 2024-11-19 00:51:09

Sorry your browser is not supported!

Dark GDK / Shader Question: adding TEXCOORDs