Apr 19, 2017 · OpenGL C++ Making Triangle. 4. OpenGL refuses to draw a triangle. 0. Basic triangle drawing with OpenGL. 2 ...

You can use a triangle strip, but you need to strategically duplicate vertices at the end of the strip to move to the next strip. The duplicated vertices create empty triangles, which OpenGL ignores. However, using straight-up triangles is certainly more straightforward.

Feb 6, 2015 · Draw a triangle edge along each face between the two black corners. That way, the diagonals form a tetrahedron inside the cube. For the [0,1]³ cube, a possible sequence of coordinates would be the following:

@genpfault So as long as I'm sending vertices of triangles in counter-clockwise order (or in clockwise order in DirectX), one triangle at a time, it doesn't matter which vertex I start with. This triangle will be a front facing one and as such it will be rendered in the specific frame. Got it. Thank you. By the way, this is a great answer. –

Dec 9, 2017 · I am a beginner at OpenGl and I am trying to draw a triangle mesh in OpenGL like this and my problem is that it is not drawing and I cannot see why. Also if I print the array of vertices the x- and y-coordinate remain the same for all vertices.

Your triangle having a texture or not has nothing to do with transformation. You rotate your triangle simply by calculating a transformation matrix, passing it to your vertex shader and multiply it with your coordinates.

Oct 15, 2016 · I'm developing a simple application with SDL2 and OpenGL in C++. The problem is that my program doesn't draw the triangle. Rect.hpp (The class that draw the triangle): #ifndef Rect_hpp #define

Nov 27, 2019 · Using Triangle Strip we will be able to get the following output, using those given vertices. Triangle Fan. Where a Triangle Fan is also a set of connected triangles, though all these triangles have a common vertex, which is the central vertex. In OpenGL the central vertex is the first given vertex, in the Triangle Fan. Example of Triangle Fan

May 11, 2016 · With a triangle list you have a lot of flexibility to reorder the triangles to take maximum advantage of the post-transform cache. The post-transform cache is a hardware cache of the last few vertices that went through the vertex shader, the GPU can spot if you've re-issued the same vertex and skip the entire vertex shader for that vertex.

Oct 18, 2015 · You can use either OpenGL ES 1.1 OR OpenGL ES 2.0, but you can't use both at the same time from the same context. I would suggest sticking with OpenGL ES 2.0 using shaders, and learning the OpenGL ES 2.0 way of doing things, as this is …