well I reread lesson 5

yes I love reading

Posted 13 April 2013 - 04:03 PM


You'll want to create a static model of your pyramid. That means no variables in the pyramid declaration. Once that's done you use a transform to place the pyramid where you want to render it in the world.

well I have read the lesson 5 several times, I understand how to scale and rotate an object but don't understand of how to transform an object. what I want to do is draw several objects to the screen. I am able to draw a single object to the center of the screen. let me know if you need more explanation. I am trying to ask more intelligent questions.

well I have reread session 5 and 7 but I am still stuck I will do more research. thanks for all the help. should I post code?

should I post code?

yep!

ok here is the code I am working with

// this is the function used to render a single frame
void
 
 
render_frame(void)
{
d3ddev->Clear(0, 
 
NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0, 0, 0), 1.0f, 0);
d3ddev->Clear(0, 
 
NULL, D3DCLEAR_ZBUFFER, D3DCOLOR_XRGB(0, 0, 0), 1.0f, 0);
d3ddev->BeginScene();
d3ddev->SetFVF(
 
CUSTOMFVF);
 
 
// set the view transform
 
 
D3DXMATRIX matView; // the view transform matrix
D3DXMatrixLookAtLH(&matView,
&
 
D3DXVECTOR3 (0.0f, 8.0f, 25.0f), // the camera position
&
 
D3DXVECTOR3 (0.0f, 0.0f, 0.0f), // the look-at position
&
 
D3DXVECTOR3 (0.0f, 1.0f, 0.0f)); // the up direction
d3ddev->SetTransform(
 
D3DTS_VIEW, &matView); // set the view transform to matView 
 
 
// set the projection transform
 
 
D3DXMATRIX matProjection; // the projection transform matrix
D3DXMatrixPerspectiveFovLH(&matProjection,
 
 
D3DXToRadian(45), // the horizontal field of view
(
 
FLOAT)SCREEN_WIDTH / (FLOAT)SCREEN_HEIGHT, // aspect ratio
1.0f, 
 
// the near view-plane
100.0f); 
 
// the far view-plane
d3ddev->SetTransform(
 
D3DTS_PROJECTION, &matProjection); // set the projection
 
 
// set the world transform
 
 
static float index = 0.0f; index+=0.03f; // an ever-increasing float value
 
 
D3DXMATRIX matRotateY; // a matrix to store the rotation for each triangle
D3DXMatrixRotationY(&matRotateY, index); 
 
// the rotation matrix
d3ddev->SetTransform(
 
D3DTS_WORLD, &(matRotateY)); // set the world transform
 
 
// select the vertex buffer to display
d3ddev->SetStreamSource(0, v_buffer, 0, 
 
sizeof(CUSTOMVERTEX));
d3ddev->SetIndices(i_buffer);
 
 
// draw the Hypercraft
d3ddev->DrawIndexedPrimitive(
 
D3DPT_TRIANGLELIST, 0, 0, 10, 0, 6);
d3ddev->EndScene(); 
d3ddev->Present(
 
NULL, NULL, NULL, NULL);
}

I am able to draw the triangular pyramid in the upper left corner of the screen. I just want to draw two pyramids to the screen. Thanks for all the help khatharr.