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Textures not appearing

 
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masterlodi



Joined: 04 Mar 2006
Posts: 11
PostPosted: Mon Jul 10, 2006 5:16 am    Post subject: Textures not appearing Reply with quote
I'm trying to texture a cube with a 24-bit bitmap and it doesn't seem to work.

I've loaded the 24-bit image file fine but when the cube is rendered, there are no textures. What am I doing wrong?

Code:
sceGuTexMode(GU_PSM_8888,0,0,0);
sceGuTexImage(0,tex.biWidth, tex.biHeight, tex.biWidth,tex.biData);
sceGuTexFunc(GU_TFX_ADD,GU_TCC_RGB);
sceGuTexFilter(GU_LINEAR,GU_LINEAR);
sceGuTexScale(1.0f,1.0f);
sceGuTexOffset(0.0f,0.0f);
sceGuAmbientColor(0xffffffff);
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chp



Joined: 23 Jun 2004
Posts: 313
PostPosted: Mon Jul 10, 2006 6:38 am    Post subject: Reply with quote
Code:
sceGuEnable(GU_TEXTURE_2D);
perhaps?
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masterlodi



Joined: 04 Mar 2006
Posts: 11
PostPosted: Mon Jul 10, 2006 7:09 am    Post subject: Reply with quote
I have already set that!

Code:

   sceGuDrawBuffer(GU_PSM_8888,fbp0,BUF_WIDTH);
   sceGuDispBuffer(SCR_WIDTH,SCR_HEIGHT,fbp1,BUF_WIDTH);
   sceGuDepthBuffer(zbp,BUF_WIDTH);
   sceGuOffset(2048 - (SCR_WIDTH/2),2048 - (SCR_HEIGHT/2));
   sceGuViewport(2048,2048,SCR_WIDTH,SCR_HEIGHT);
   sceGuDepthRange(65535,0);
   sceGuScissor(0,0,SCR_WIDTH,SCR_HEIGHT);
   sceGuEnable(GU_SCISSOR_TEST);
   sceGuDepthFunc(GU_GEQUAL);
   sceGuEnable(GU_DEPTH_TEST);
   sceGuFrontFace(GU_CW);
   sceGuShadeModel(GU_SMOOTH);
   sceGuEnable(GU_CULL_FACE);
   sceGuEnable(GU_TEXTURE_2D);
   sceGuEnable(GU_CLIP_PLANES);
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ufoz



Joined: 10 Nov 2005
Posts: 86
Location: Tokyo
PostPosted: Mon Jul 10, 2006 2:21 pm    Post subject: Reply with quote
Code:
sceGuTexFunc(GU_TFX_ADD,GU_TCC_RGB);

Maybe try GU_TFX_MODULATE? Cause the way this looks, you're adding to FFFFFF which will stay white, unless I'm missing something.
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Drakonite
Site Admin


Joined: 17 Jan 2004
Posts: 989
PostPosted: Mon Jul 10, 2006 3:05 pm    Post subject: Reply with quote
You need to use GU_TCC_RGBA as second arg to sceGuTexFunc if you are doing any blending... and if you aren't doing any blending, GU_TFX_REPLACE should work ;)
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masterlodi



Joined: 04 Mar 2006
Posts: 11
PostPosted: Tue Jul 11, 2006 7:02 am    Post subject: Reply with quote
I set the ambient colour to 0xffffffff because I thought this would'nt colourise the texture map?!

I'm now using GU_TFX_REPLACE in the sceGuTexFunc call but no change?!
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skwi



Joined: 16 May 2006
Posts: 22
PostPosted: Wed Jul 19, 2006 5:09 am    Post subject: Reply with quote
I've had the same problem because my texture was not alignated to 16 bytes, try this, this should work
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masterlodi



Joined: 04 Mar 2006
Posts: 11
PostPosted: Wed Aug 02, 2006 5:36 pm    Post subject: Reply with quote
I still can't get this to work: -

Code:

typedef struct
{
   u32 biWidth;
                u32 biHeight;
   u32 uSize;
   u8* biData;            
} __attribute__((aligned(16))) TEXTURE;


TEXTURE __attribute__((aligned(16))) texCube;


   pspDebugScreenInit();
   setupCallbacks();

   // setup GU

   void* fbp0 = getStaticVramBuffer(BUF_WIDTH,SCR_HEIGHT,GU_PSM_8888);
   void* fbp1 = getStaticVramBuffer(BUF_WIDTH,SCR_HEIGHT,GU_PSM_8888);
   void* zbp = getStaticVramBuffer(BUF_WIDTH,SCR_HEIGHT,GU_PSM_4444);

   BMP_Load("DATA\\TEST.BMP", &texCube);
   
   sceGuInit();

   sceGuStart(GU_DIRECT,list);
   sceGuDrawBuffer(GU_PSM_8888,fbp0,BUF_WIDTH);
   sceGuDispBuffer(SCR_WIDTH,SCR_HEIGHT,fbp1,BUF_WIDTH);
   sceGuDepthBuffer(zbp,BUF_WIDTH);
   sceGuOffset(2048 - (SCR_WIDTH/2),2048 - (SCR_HEIGHT/2));
   sceGuViewport(2048,2048,SCR_WIDTH,SCR_HEIGHT);
   sceGuDepthRange(65535,0);
   sceGuScissor(0,0,SCR_WIDTH,SCR_HEIGHT);
   sceGuEnable(GU_SCISSOR_TEST);
   sceGuDepthFunc(GU_GEQUAL);
   sceGuEnable(GU_DEPTH_TEST);
   sceGuFrontFace(GU_CW);
   sceGuShadeModel(GU_SMOOTH);
   sceGuEnable(GU_CULL_FACE);
   sceGuEnable(GU_TEXTURE_2D);
   sceGuEnable(GU_CLIP_PLANES);
   sceGuFinish();
   sceGuSync(0,0);

   sceDisplayWaitVblankStart();
   sceGuDisplay(GU_TRUE);

   // run sample

   int val = 0;

   while(running())
   {
      sceGuStart(GU_DIRECT,list);

      // clear screen

      sceGuClearColor(0xff554433);
      sceGuClearDepth(0);
      sceGuClear(GU_COLOR_BUFFER_BIT|GU_DEPTH_BUFFER_BIT);

      // setup matrices for cube

      sceGumMatrixMode(GU_PROJECTION);
      sceGumLoadIdentity();
      sceGumPerspective(75.0f,16.0f/9.0f,0.5f,1000.0f);

      sceGumMatrixMode(GU_VIEW);
      sceGumLoadIdentity();

      sceGumMatrixMode(GU_MODEL);
      sceGumLoadIdentity();
      {
         ScePspFVector3 pos = { 0, 0, -2.5f };
         ScePspFVector3 rot = { val * 0.79f * (GU_PI/180.0f), val * 0.98f * (GU_PI/180.0f), val * 1.32f * (GU_PI/180.0f) };
         sceGumTranslate(&pos);
         sceGumRotateXYZ(&rot);
      }

      // setup texture

      sceGuTexMode(GU_PSM_8888,0,0,0);
      sceGuTexImage(0,texCube.biWidth, texCube.biHeight, texCube.biWidth,texCube.biData);
      sceGuTexFunc(GU_TFX_MODULATE, GU_TCC_RGBA);
      sceGuTexEnvColor(0xffff00);
      sceGuTexFilter(GU_LINEAR,GU_LINEAR);
      sceGuTexScale(1.0f,1.0f);
      sceGuTexOffset(0.0f,0.0f);
      sceGuAmbientColor(0xffffffff);

      // draw cube

      sceGumDrawArray(GU_TRIANGLES,GU_TEXTURE_32BITF|GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,12*3,0,vertices);

      sceGuFinish();
      sceGuSync(0,0);

      sceDisplayWaitVblankStart();
      sceGuSwapBuffers();

      val++;
   }

   sceGuTerm();

   sceKernelExitGame();
   return 0;
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Raphael



Joined: 17 Jan 2006
Posts: 646
Location: Germany
PostPosted: Wed Aug 02, 2006 6:18 pm    Post subject: Reply with quote
masterlodi wrote:
I still can't get this to work: -

Code:

typedef struct
{
   u32 biWidth;
                u32 biHeight;
   u32 uSize;
   u8* biData;            
} __attribute__((aligned(16))) TEXTURE;


TEXTURE __attribute__((aligned(16))) texCube;



You know how this is not gonna align your biData to 16 bytes? You need to allocate biData with memalign
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masterlodi



Joined: 04 Mar 2006
Posts: 11
PostPosted: Thu Aug 03, 2006 8:04 am    Post subject: Reply with quote
Raphael - thank you!

It all works perfectly! PS2 was sooo much easier (well, with a SCEE license anyway) :-)
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