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[rlgl][rmodels][rshapes] Add support for GL_POINTS #5689

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[rlgl][rmodels][rshapes] Add support for GL_POINTS #5689

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735ba4e
Add support for GL_POINTS
maiconpintoabreu Mar 23, 2026
8301894
Changing drawpixel to use `RL_POINTS`
maiconpintoabreu Mar 27, 2026
37bab54
Allow opengl33 version to be able to point size
maiconpintoabreu Mar 27, 2026
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24 changes: 18 additions & 6 deletions src/rlgl.h
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Original file line number Diff line number Diff line change
Expand Up @@ -264,6 +264,7 @@
#define RL_TEXTURE 0x1702 // GL_TEXTURE

// Primitive assembly draw modes
#define RL_POINTS 0x0000 // GL_POINTS
#define RL_LINES 0x0001 // GL_LINES
#define RL_TRIANGLES 0x0004 // GL_TRIANGLES
#define RL_QUADS 0x0007 // GL_QUADS
Expand Down Expand Up @@ -1455,6 +1456,7 @@ void rlBegin(int mode)
{
switch (mode)
{
case RL_POINTS: glBegin(GL_POINTS); break;
case RL_LINES: glBegin(GL_LINES); break;
case RL_TRIANGLES: glBegin(GL_TRIANGLES); break;
case RL_QUADS: glBegin(GL_QUADS); break;
Expand Down Expand Up @@ -1487,7 +1489,8 @@ void rlBegin(int mode)
// It implies adding some extra alignment vertex at the end of the draw,
// those vertex are not processed but they are considered as an additional offset
// for the next set of vertex to be drawn
if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_LINES) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount < 4)? RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount : RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%4);
if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_POINTS) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = (4 - (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount & 3)) & 3;
else if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_LINES) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount < 4)? RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount : RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%4);
else if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_TRIANGLES) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount < 4)? 1 : (4 - (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%4)));
else RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = 0;

Expand Down Expand Up @@ -1536,7 +1539,15 @@ void rlVertex3f(float x, float y, float z)
// Checking current draw.mode when a new vertex is required and finish the batch only if the draw.mode draw.vertexCount is %2, %3 or %4
if (RLGL.State.vertexCounter > (RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].elementCount*4 - 4))
{
if ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_LINES) &&
if ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_POINTS) &&
(RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount != 0))
{
// Reached the maximum number of vertices for RL_POINTS drawing
// Launch a draw call but keep current state for next vertices comming
// NOTE: Adding +1 vertex to the check for some safety
rlCheckRenderBatchLimit(1 + 1);
}
else if ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_LINES) &&
(RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%2 == 0))
{
// Reached the maximum number of vertices for RL_LINES drawing
Expand Down Expand Up @@ -1685,7 +1696,8 @@ void rlSetTexture(unsigned int id)
// It implies adding some extra alignment vertex at the end of the draw,
// those vertex are not processed but they are considered as an additional offset
// for the next set of vertex to be drawn
if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_LINES) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount < 4)? RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount : RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%4);
if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_POINTS) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = (4 - (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount & 3)) & 3;
else if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_LINES) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount < 4)? RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount : RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%4);
else if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_TRIANGLES) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount < 4)? 1 : (4 - (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%4)));
else RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = 0;

Expand Down Expand Up @@ -2032,7 +2044,7 @@ float rlGetLineWidth(void)
// Set the point drawing size
void rlSetPointSize(float size)
{
#if defined(GRAPHICS_API_OPENGL_11)
#if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33)
glPointSize(size);
#endif
}
Expand All @@ -2041,7 +2053,7 @@ void rlSetPointSize(float size)
float rlGetPointSize(void)
{
float size = 1;
#if defined(GRAPHICS_API_OPENGL_11)
#if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33)
glGetFloatv(GL_POINT_SIZE, &size);
#endif
return size;
Expand Down Expand Up @@ -3131,7 +3143,7 @@ void rlDrawRenderBatch(rlRenderBatch *batch)
// Bind current draw call texture, activated as GL_TEXTURE0 and bound to sampler2D texture0 by default
glBindTexture(GL_TEXTURE_2D, batch->draws[i].textureId);

if ((batch->draws[i].mode == RL_LINES) || (batch->draws[i].mode == RL_TRIANGLES)) glDrawArrays(batch->draws[i].mode, vertexOffset, batch->draws[i].vertexCount);
if ((batch->draws[i].mode == RL_POINTS) || (batch->draws[i].mode == RL_LINES) || (batch->draws[i].mode == RL_TRIANGLES)) glDrawArrays(batch->draws[i].mode, vertexOffset, batch->draws[i].vertexCount);
else
{
#if defined(GRAPHICS_API_OPENGL_33)
Expand Down
15 changes: 5 additions & 10 deletions src/rmodels.c
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Original file line number Diff line number Diff line change
Expand Up @@ -189,18 +189,13 @@ void DrawLine3D(Vector3 startPos, Vector3 endPos, Color color)
rlEnd();
}

// Draw a point in 3D space, actually a small line
// WARNING: OpenGL ES 2.0 does not support point mode drawing
// Draw a point in 3D space
void DrawPoint3D(Vector3 position, Color color)
{
rlPushMatrix();
rlTranslatef(position.x, position.y, position.z);
rlBegin(RL_LINES);
rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex3f(0.0f, 0.0f, 0.0f);
rlVertex3f(0.0f, 0.0f, 0.1f);
rlEnd();
rlPopMatrix();
rlBegin(RL_POINTS);
rlColor4ub(color.r, color.g, color.b, color.a);
rlVertex3f(position.x, position.y, position.z);
rlEnd();
}

// Draw a circle in 3D world space
Expand Down
37 changes: 1 addition & 36 deletions src/rshapes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -128,45 +128,10 @@ void DrawPixel(int posX, int posY, Color color)
// Draw a pixel (Vector version)
void DrawPixelV(Vector2 position, Color color)
{
#if SUPPORT_QUADS_DRAW_MODE
rlSetTexture(GetShapesTexture().id);
Rectangle shapeRect = GetShapesTextureRectangle();

rlBegin(RL_QUADS);

rlNormal3f(0.0f, 0.0f, 1.0f);
rlColor4ub(color.r, color.g, color.b, color.a);

rlTexCoord2f(shapeRect.x/texShapes.width, shapeRect.y/texShapes.height);
rlVertex2f(position.x, position.y);

rlTexCoord2f(shapeRect.x/texShapes.width, (shapeRect.y + shapeRect.height)/texShapes.height);
rlVertex2f(position.x, position.y + 1);

rlTexCoord2f((shapeRect.x + shapeRect.width)/texShapes.width, (shapeRect.y + shapeRect.height)/texShapes.height);
rlVertex2f(position.x + 1, position.y + 1);

rlTexCoord2f((shapeRect.x + shapeRect.width)/texShapes.width, shapeRect.y/texShapes.height);
rlVertex2f(position.x + 1, position.y);

rlEnd();

rlSetTexture(0);
#else
rlBegin(RL_TRIANGLES);

rlBegin(RL_POINTS);
rlColor4ub(color.r, color.g, color.b, color.a);

rlVertex2f(position.x, position.y);
rlVertex2f(position.x, position.y + 1);
rlVertex2f(position.x + 1, position.y);

rlVertex2f(position.x + 1, position.y);
rlVertex2f(position.x, position.y + 1);
rlVertex2f(position.x + 1, position.y + 1);

rlEnd();
#endif
}

// Draw a line (using gl lines)
Expand Down
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