Apple

On Oct 23, 2013, at 3:12 PM, Ardo Avancena <email@hidden> wrote:

Darrin,

So I did some re arranging and took out the GL_TEXTURE_2Ds but I still can't manage to get the image fill the shape.

I'm trying to follow the Directional Blur example included in fxplug sdk's function called "copy from texture to texture". Hoping that this will load my image to the shape I created.

glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
glActiveTexture(GL_TEXTURE0);
[linkedTexture enable];
[linkedTexture bind];

//This block draws my shape
GLfloat texpts[2][2][2] = {{{0.0, 0.0}, {0.0, 1.0}},
{{1.0, 0.0}, {1.0, 1.0}}};
glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4,
0, 1, 12, 4, &compoundPoints[0][0][0]);
glMap2f(GL_MAP2_TEXTURE_COORD_2, 0, 1, 2, 2,

0, 1, 4, 2, &texpts[0][0][0]);
glEnable(GL_MAP2_TEXTURE_COORD_2);
glEnable(GL_MAP2_VERTEX_3);
glMapGrid2f(20, 0.0, 1.0, 20, 0.0, 1.0);
[linkedTexture disable];


glBindTexture([linkedTexture target], 0);

glEnable(GL_DEPTH_TEST);
glShadeModel (GL_FLAT);
glColor3f(1.0, 0.0, 0.0);

glEvalMesh2(GL_FILL, 0, 20, 0, 20);

** What ends up happening is that the square will be made, but will only follow the glColor3f(1.0,0.0,0.0);

On Wed, Oct 23, 2013 at 1:42 PM, Darrin Cardani <email@hidden> wrote:

Ardo,

To answer your first question - you should be able to just use the texture we give you after binding it. You shouldn't need to call glTexImage2D(). In fact, I'm not sure what calling it will do. It's possible that it could end up destroying the pixel data that we assigned to the image, though I don't know for sure.

To answer your second question, you need to look at which OpenGL calls are generating the errors and see what the OpenGL docs say about those errors for those calls.

Darrin

On Oct 23, 2013, at 1:25 PM, Ardo Avancena <email@hidden> wrote:

Darrin,

I changed the GL_TEXTURE_2D targets to [linkedTexture target] or [outTex target] or GL_TEXTURE_RECTANGLE_ARB i get errors saying invalid enum.

Then I also used [linkedTexture bind], then verified if it is binded on the current target, but the int value didnt change.

Is there something incorrectly set up on the textures?

On Wed, Oct 23, 2013 at 12:11 PM, Ardo Avancena <email@hidden> wrote:

Darrin,
I was using glTexImage2D to bring the image from linkedTexture to fill the shape I drew. Should I just use the bind? Or is the process incorrect?
Thanks!

On Oct 23, 2013 12:00 PM, "Darrin Cardani" <email@hidden> wrote:

Ardo,

In the call the glBindTexture(), you're using GL_TEXTURE_2D as the target, but the texture returned by -[parmsApi getTexture:::::] will (currently) always have a target of GL_TEXTURE_RECTANGLE_ARB. You should ask the texture for its target, if you need it, but in this case, you might not even need it. You can just tell the texture to bind:

[linkedTexture bind];

and it will do the right thing. If you need to pass the target to some other method, you can call

[linkedTexture target];

Also, I don't understand why you're calling glTexImage2D(). The texture will already have data in it and will be the right width and height. What are you trying to accomplish there?

Darrin

On Oct 23, 2013, at 11:44 AM, Ardo Avancena <email@hidden> wrote:

I'm trying to link an use an image from the media and fill it with the shape I drew.

//I first take the texture in the parameter
[parmsApi getTexture:&linkedTexture
  layerOffsetX:NULL
  layerOffsetY:NULL
     requestInfo:linkedImageRenderInfo
  fromParm:imageReferenceID

  atTime:renderInfo.frame];

GLuint imageTexture = [linkedTexture textureId];

**The compound points is GLFloat[4][4][3]; it was quite big but this creates a square I can use bezier.

GLfloat texpts[2][2][2] = {{{0.0, 0.0}, {0.0, 1.0}},
{{1.0, 0.0}, {1.0, 1.0}}};
glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4,
0, 1, 12, 4, &compoundPoints[0][0][0]);
glMap2f(GL_MAP2_TEXTURE_COORD_2, 0, 1, 2, 2,
0, 1, 4, 2, &texpts[0][0][0]);
glEnable(GL_MAP2_TEXTURE_COORD_2);
glEnable(GL_MAP2_VERTEX_3);
glMapGrid2f(20, 0.0, 1.0, 20, 0.0, 1.0);

//Then I try to bind it the texture I got from the parameter and load the texImage2D

glBindTexture(GL_TEXTURE_2D, imageTexture);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,

  GL_NEAREST);

glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA_FLOAT16_APPLE, [linkedTexture width], [linkedTexture height], 0, GL_RGB, GL_UNSIGNED_BYTE, 0);

When I do this, I get a square with weird pictures.

Also is there an example included in FxPlug that shows how to create a published parameter that can be carried over to FCPX?

Thanks!

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References:
	>Using image to fill shape and Published parameters (From: Ardo Avancena <email@hidden>)
	>Re: Using image to fill shape and Published parameters (From: Darrin Cardani <email@hidden>)
	>Re: Using image to fill shape and Published parameters (From: Ardo Avancena <email@hidden>)
	>Re: Using image to fill shape and Published parameters (From: Ardo Avancena <email@hidden>)
	>Re: Using image to fill shape and Published parameters (From: Darrin Cardani <email@hidden>)
	>Re: Using image to fill shape and Published parameters (From: Ardo Avancena <email@hidden>)